The electrical potential energy of the system at a separation of 6 meters is greater than the electrical potential energy of the system at a separation of 12 meters.
The electrical potential energy of the system at a separation of 6 meters is greater than the electrical potential energy of the system at a separation of 12 meters. This is because electrical potential energy is inversely proportional to the separation distance between the charges. As the separation distance decreases, the electrical potential energy increases. This relationship can be represented by the equation:
U = kq1q2/r
where U is the electrical potential energy, k is a constant, q1 and q2 are the charges, and r is the separation distance. As r decreases, U increases.
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The number of crests passing a given point in one second is (where T is time period and v is frequency)A. TB. vC. 2TD 2v
The right response is B. v, where v stands for the wave's frequency.
What is the sound frequency?Frequency, also referred to as pitch, is the rate at which a sound pressure wave repeats itself. A bullfrog cry is significantly lower in frequency than a whistle, while a cricket is much lower in frequency than a drumbeat. With decreasing frequency, the oscillations become less prominent.
What is frequency—light or sound?The ability to identify one sound from another and one colour of light depends on frequency. Red light, for instance, differs from blue light because of its lower frequency. Dogs are able to sense sounds, thus they can hear a whistle that you cannot.
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A researcher wants to determine whether the circadian temperature cycle is less stable for older compared to middle aged adults. Body temperature in degrees Fahrenheit is measured every 15 minutes over a period of 3 days.
Choose the appropriate scale of measurement.
Nominal
Ordinal
Interval
Ratio
Approximately Interval
A researcher wants to know whether older persons' circadian temperature cycles are less stable than those of middle-aged adults.
What is the temperature measurement scale in degrees ?Scale in Celsius: This scale has an upper reference position (steam point) of 100° and a lower reference point (ice point), both of which are fixed at 0°. On this scale, the temperature was recorded in degrees Centigrade (° C).
What types of measure temperature scales are there? What connection do they have one another?There are two scales that used measure temperature: Celsius and Fahrenheit. The temperature will be reported in degrees Celsius on the centigrade scale. Degrees Fahrenheit will be used to express temperature on the Fahrenheit scale. The heat energy of Celsius to Fahrenheit.
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Part A
Sort each of the astronomical questions below into the appropriate bin based on the type of observation you would need to perform to answer it.
Imaging: How large is the Andromeda Galaxy? What are the major surface features of Mars? Are stars in the Orion Nebula surrounded by gas?
Spectroscopy: What is the chemical composition of the Crab Nebula? What is the temperature of Jupiter's atmosphere? Is the star Vega moving toward us or away from us?
Timing: Does the star Mira vary in brightness? Is the X-ray emission from the galactic center steady or changing?
The nebula is the closest big star-forming zone to Earth but is still 1,500 light-years away, giving it a moderately bright apparent brightness of 4.
What is the Orion Nebula like, in the opinion?The Orion Nebula, sometimes referred to as Mass 42, M42, also NGC 1976, is a diffused nebula below Orion's Belt with a greenish hue. Several of the sharpest nebulae, it may be seen in the sky at night with the unaided eye.
For what is Orion most well-known?One of the clearest and most familiar constellation inside the sky is the one that bears the name of the hunt from Greek mythology. According to the astronomy website Astronomy Trek, Orion contains Betelgeuse (Alpha Orionis) and Rigel (Beta Orionis), 2 of the 10 bright stars in the sky.
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if you are sitting 8.20m from a 70.0 w speaker what is the intensity of the sound (treat the speaker as a point source.) (Unit=W/m^2)
8.20 meters away from the speaker, there is roughly 0.092 W/m2 of sound intensity.
What is a sound's intensity, using an example?
Since sound is perceived on a logarithmic scale, a rise of 10 dB corresponds to an intensity that is 10 times stronger. For instance, the intensity of the sound of the waves at the coast is 1,000 times greater than that of a whisper, or an increase of 30 dB.
How would you describe the sound's intensity?The following equation can be used to calculate sound intensity: I=Δp22ρvw. P stands for pressure change or amplitude, D stands for material density, and VW stands for measured sound speed. The more volume you use The greater the wave oscillation, the louder your sound will be.
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Answer: .083
Explanation:
acellus
to double the total energy of a mass-spring system oscillating in simple harmonic motion, the amplitude must increase by a factor of?
To square-root the angular frequency to double the total energy of a mass oscillating at the end of a spring with amplitude A. 2. Amplify the signal by the square root of 2.
What is SHM?Simple harmonic motion is a periodic motion in which the acceleration of each individual particle is proportionate to its displacement and is aimed at the mean position.
This is due to the fact that the total energy of a straightforward harmonic oscillator is inversely proportional to its amplitude. The total energy is quadrupled (i.e., doubled squared) if the amplitude is doubled, which is the factor required to double the total energy.
The amplitude must therefore rise by the square root of 2 to twice the total energy.
Therefore, The amplitude of a mass-spring system oscillating in simple harmonic motion must rise by a factor of $sqrt2$, or around 1.414, to double the total energy of the system.
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can someone please help me 50 points to the person that gets it right
Explanation:
Convert °F to °C. and Convert °C to °F
Describe how you would use an uncalibrated force probe and the springs in Question 1 to develop a quantitative scale of force. How could you measure forces that do not correspond to exact numbers of stretched springs?fyi: Question 1 states you are given 10 identical springs. Describe how you would develop a scale of force using these springs.
Given 10 identical springs, we can use multiple springs in parallel to measure larger forces. We can attach the force probe to multiple springs and measure the amount of stretch.
To use the uncalibrated force probe and the springs in Question 1 to develop a quantitative scale of force, we can follow these steps:
1. Attach the uncalibrated force probe to one end of the spring and attach an object of known mass to the other end.
2. Record the length of the spring when it is at rest and when the object is attached. The difference between these two lengths will be the amount the spring is stretched by the weight of the object.
3. Repeat this process for different masses, recording the amount of stretch for each mass.
4. Plot the amount of stretch (in meters) versus the weight (in Newtons) for each mass. This will create a linear relationship between the amount of stretch and the weight.
5. Using this linear relationship, we can calibrate the force probe and develop a quantitative scale of force. We can now use the scale to measure the force applied to the probe by other objects by observing the amount of stretch in the spring.
If we encounter forces that do not correspond to exact numbers of stretched springs, we can estimate the force by interpolating between the values on the scale. For example, if a force stretches the spring to a length that is between the length for one and two stretched springs, we can estimate the force by interpolating between the force values for one and two springs.
Given 10 identical springs, we can use multiple springs in parallel to measure larger forces. We can attach the force probe to multiple springs and measure the amount of stretch for a given force. By combining the results from multiple springs, we can extend the range of forces we can measure with the setup
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what must be a particle's charge-to-mass ratio if the magnitude of the gravitational force between two of these particles is equal to the magnitude of electric force between them
The ratio of the charge on each particle to its mass must be equal when the magnitude of the gravitational force between two of these particles is equal to the magnitude of the electric force between them.
What does magnitude mean?The term “magnitude” refers to the size or quantity of a physical quantity, without taking into account its direction. It is a scalar quantity, meaning it has only a numerical value and no associated direction.
For example, the magnitude of a vector quantity like velocity, which has both a magnitude and direction, refers only to its numerical value, without regard to its direction.
Similarly, the magnitude of a force, electric field, magnetic field, or any other vector quantity refers to the strength or intensity of that quantity, regardless of its direction.
When the gravitational and electric forces between two particles are equal in strength, the following equation describes these forces:
Gravitational force:
[tex]F_g = G\times \frac{(m1 m2)}{(r_2)}[/tex]
Electric force:
[tex]F_e = K\times \frac{(q1 q2)}{(r_2)}[/tex]
Where G is the gravitational constant, k is the Coulomb constant, m1 and m2 are the masses of the particles, q1 and q2 are their charges, and r is the distance between them.
Since, the charge-to-mass ratio for the particles is needed, let's rearrange the equations as follows:
(1) [tex]q_1\times q_2 = F_e\times \frac{r_2}{k}[/tex]
(2) [tex]m_1\times m_2 = F_g\times \frac{r_2}{k}[/tex]
Divide the first equation by the second equation
[tex](q1 \times q2) / (m1 \times m2) = (Fe / Fg) \times (G / k)[/tex]
This expression has to be equal to 1, so can set
[tex](Fe / Fg) \times (G / k) = 1[/tex]
Substituting the expressions for Fg and Fe,
Rearrange the equation
Therefore, This means that the charge-to-mass ratio for the two particles must be the same. In other words, the ratio of the charge on each particle to its mass must be equal.
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What are data ?
A - Sources that summarize a primary source
B - Educated guesses about the outcome of an experiment
C - Pieces of information recorded in an experiment
D - Variables that are adjusted by the experimenter
C - Pieces of information recorded in an experiment.
What is sample space?The sample space S of a random experiment is defined as the set of all possible outcomes of an experiment. In a random experiment, the outcomes, also known as sample points, are mutually exclusive.
Data refers to any pieces of information that are collected or recorded during an experiment or study.
This information can be qualitative or quantitative and may include measurements, observations, survey responses, or any other type of information that can be analyzed to answer research questions or test hypotheses.
Data can be analyzed and interpreted to draw conclusions or make predictions about the phenomenon being studied.
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Noble gases have stable electron arrangements and therefore seldom form compounds. The stable electron arrangements include a _________ outer energy level and _________ potential energy than other arrangements.
The words that fill in the blanks are;
Completely filled
High
What are noble gases?Noble gases are a group of chemical elements in the periodic table that are typically inert or unreactive due to their stable electronic configurations. They include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).
We know that the Noble gases do have a complete outer shell and that they are able to not combine with the other elements in a chemical bond. This is the hallmark of the noble gases as we know in the periodic table.
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Problem 3: A fireman has mass m; he hears the fire alarm and slides down the pole with acceleration a (which is less than g in magnitude). Part (a) Using the variables in the problem statement, write an equation giving the vertical force F resisting the force of gravity on the firefighter. Expression : F= Select from the variables below to write your expression. Note that all variables may not be required. B, Y, 0, a, b, c, d, g, h, j, k, m, n, P, S Part (b) If his mass m = 79.6-kg and he accelerates at a = 7.9 , what is the magnitude of the force of resistance in Newtons? Numeric : A numeric value is expected and not an expression. F=
the answer to the (a) F=m(a−g) and (b) ║F║= 440. 19 N. to solve this we need to use newton's law of motion as follows:
a) Our task is to write an equation giving the vertical force that must apply to the pole.
From the Newton's second law of the motions, the net force [tex](F_{net})[/tex] is
[tex](F_{net})[/tex] = ∑[tex]F= F_{1}[/tex] + [tex]F_{2}[/tex] + [tex]F_{3}[/tex] ..... = m.a
When we accord into equation (1), we get.
F-W = m.a
F−m⋅g = m.a
The vertical force from the equation (3) will be.
Fj= m.aj - m⋅gj
When we take the common factor, final equation will be.
F=m(a−g)
b) Our task is to determine the magnitude of the force.
║F║= m(a - g)
calculations
║F║ = 90kg [tex]( 5.0 \frac{m}{s_{2}} - 9.6 \frac{m}{s_{2}} )[/tex]
= 90 kg ( -4.81 [tex]m/s_{2}[/tex])
║F║= 440. 19 N
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The kinetic energy for a moving object is given by K E = 1/2 m v^2. Which of the following gives the correct units for energy?kg·m²/s²
The correct units for kinetic energy is, kg*m^2/s^2.
Units can be derived by looking at the units of the equation for kinetic energy: K E = 1/2 m v^2. The mass (m) is typically measured in kilograms (kg), while the velocity (v) is measured in meters per second (m/s). Squaring velocity gives units of m^2/s^2. Multiplying by mass and the 1/2 coefficient gives units of kg*m^2/s^2, which is equivalent to joules (J).
Joules are a derived unit of energy, defined as the amount of work done when a force of one newton (N) is applied over a distance of one meter (m). They are widely used in physics and engineering to quantify energy, as well as other quantities like work, power, and heat.
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--The complete question is, The kinetic energy for a moving object is given by K E = 1/2 m v^2. Which of the following gives the correct units for energy?
a. m/s
b. kg. m/s^2
c. kg. m s^2
d. kg. m^2/s^2--
Which of the following is not an advantage that a reflector telescope has over a refractor telescope? a reflector doesn't have to do deal with the twinkling of the stars, as a refractor does.
A reflector doesn't have to do deal with the twinkling of the stars, as a refractor does, is not an advantage that a reflector telescope has over a refractor telescope.
Types of TelescopesTelescopes turned out to be divided into several types. here are some types of telescopes that you need to know:
1. Refractor Telescope
A refractor telescope is a refracting telescope consisting of several glass lenses as a tool used to capture light and carry out the powers of the tool. In a refractive telescope, it consists of two convex lenses as the objective and eyepiece lenses. Advertisement The light that enters the binoculars will be refracted by the lens. Therefore, this telescope is called a refracting telescope.
2. Reflector Telescope
Another type of telescope is the reflector telescope. This telescope is a type of telescope that uses a mirror to replace the lens used to capture light and reflect it. This telescope is used to observe deepsky objects such as nebulae, galaxies, opencusters, and comets.
3. Catadioptric Telescope
This type of telescope has a working system that is not far from the two previous types of telescopes. This is because a catadioptric telescope is a combination of a refractor and reflector telescope that uses two media to collect light.
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the truck at c is pulling the log at b via the pulley system shown. after the truck has moved 4 ft to the right, how far has the log moved? if at that instant, the truck has a velocity of 2 ft/s to the right, what is the velocity of the log? if at that instant the truck has an acceleration of 0.5 ft/s2 to the right, what is the acceleration of the log
Finally, let's consider the accelerations of the truck and the log. Since the cable connecting them is not slack or stretched, the truck and the log have the same acceleration. Therefore, at the instant when the truck has an acceleration of 0.5 ft/s2 to the right, the log also has an acceleration of 0.5 ft/s2 to the right.
To solve this problem, we need to apply the principles of kinematics and pulley systems. Let's assume that the pulley is ideal (i.e., frictionless and massless) and that the cable connecting the truck and the log does not stretch or slip.
First, let's consider the distances moved by the truck and the log. Since the cable does not stretch, the distance moved by the truck is equal to the distance moved by the log. Therefore, after the truck has moved 4 ft to the right, the log has also moved 4 ft to the right.
Next, let's consider the velocities of the truck and the log. Since the cable connecting them is not slack or stretched, the truck and the log have the same velocity. Therefore, at the instant when the truck has a velocity of 2 ft/s to the right, the log also has a velocity of 2 ft/s to the right.
Therefore, at the instant when the truck has an acceleration of 0.5 ft/s2 to the right, the log also has an acceleration of 0.5 ft/s2 to the right.
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a plane has an eastward heading at a speed of 156 m/s (relative to the air). a 20.0 m/s wind is blowing southward while the plane is flying. the velocity of the plane relative to the ground is
Answer:
Below
Explanation:
The 156 and 20 m/s speeds form the LEGS of a right triangle....you want to find the resultant hypotenuse....so use pythagorean theorem
Resultant ^2 = 156 ^2 + 20^2
resultant ^2 = 24736
Resultant = 157.3 m/s magnitude
true/false. develop an expression for the pressure variation in a liquid in which the specific weight increases with depth, h, as where k is a constant and is the specific weight at the free surface.
Develop expressions for variations in pressure in fluids ⇒ p = K[tex]\frac{h^2}{2}[/tex] + γ₀h
Since we are given a function of specific weight value, which varies with height, we have to define a differential change in pressure over an infinitesimally small change in height:
dp = γdh
Substitute the function:
dp = (Kh+γ₀) dh
This relationship allows us to integrate pressure changes, over small height changes, and obtain the total pressure change:
p = ∫(Kh+γ₀)dh
p = [tex]\int\limits^h_0[/tex]Khdh + [tex]\int\limits^h_0[/tex]γ₀dh
p = Kh²/2[tex]]_0^h[/tex] + γ₀h[tex]]_0^h[/tex]
p = K[tex]\frac{h^2}{2}[/tex] + γ₀h
Your question is incomplete but most probably your full question was:
Develop an expression for the pressure variation in a liquid in which the specific weight increases with depth, h, as γ = Kh+γ₀ where K is a constant and yo is the specific weight at the free surface.
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In the video, forces acting on the car that are parallel to the direction of motion are analyzed. How a forces related? ANSWER a. he forces are unequal in size, act in opposite directions, and produce a net orce in the direction of motion. b. The forces are equal in size, act in opposite directions, and produce a zero net force
c. Theforces are unequal in size, act in the same direction and produce a net force in the direction of motion. d. The forces are equal in size, act in the same direction, and produce a net force in the direction df motion. e. The forces are equal in size, act in opposite directions, and produce a net force in the direction of motion.
The forces are unequal in size, act in opposite directions, and produce a net force in the direction of motion. Option d is correct answer.
When multiple forces act on an object in same direction, net force can be found by adding up individual forces.
If the forces are equal in size but opposite in direction, they produce a zero net force, resulting in no acceleration. However, if forces are unequal in size and opposite in direction, they produce a net force in the direction of the larger force, resulting in an acceleration. Therefore, the correct answer is (d) the forces are unequal in size, act in opposite directions, and produce a net force in the direction of motion.
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--The complete question is, In the video, forces acting on the car that are parallel to the direction of motion are analyzed. How are these forces related?
a. The forces are equal in size, act in the same direction, and produce a net force in the direction of motion.
b. The forces are equal in size, act in opposite directions, and produce a zero net force.
c. The forces are unequal in size, act in the same direction, and produce a net force in the direction of motion.
d. The forces are unequal in size, act in opposite directions, and produce a net force in the direction of motion.
e. The forces are equal in size, act in opposite directions, and produce a net force in the direction of motion.--
The figure is a cross-section of two infinite lines of charge that extend out of the page. Do both have a linear charge density?
Find an expression for the electric field strength E at height y above the midpoint between the lines. Express your answer in terms of the variables?
y, d, and appropriate constants.
At any point on a line charge distribution, the linear charge density is the amount of charge per unit length, expressed in coulombs per meter (Cm1). Electric charge can be positive or negative, hence charge density can also be positive or negative.
What is a linear charge density?Linear charge density is a measure of the amount of electric charge per unit length along a line or wire. It is denoted by the symbol λ (lambda) and has units of coulombs per meter (C/m).
To calculate the linear charge density, you divide the total charge by the length of the line or wire. For example, if a wire has a total charge of 5 coulombs and a length of 2 meters, then the linear charge density would be:
λ = 5 C / 2 m = 2.5 C/m
P.S: Your information is incomplete and an overview was given.
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A balloon with a volume of 5.3 L is taken from an indoor temperature of 24 degrees Celsius to the outdoors. The volume of the balloon outside is 4.9 L. Determine the Celsius temperature outside.
The temperature outside is 1.6 degrees Celsius
What is the Charles law?Charles's law, also known as the law of volumes, is a fundamental gas law that describes the relationship between the volume and temperature of a gas at a constant pressure.
It states that, for a fixed mass of gas at a constant pressure, the volume of the gas is directly proportional to its absolute temperature.
By the use of the Charlee's law;
V1/T1 = V2/T2
V1T2 = V2T1
T2 = V2T1/V1
T2 = 4.9 * 297/5.3
T2 = 1.6 degrees Celsius
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The illustration below shows two boxes on opposite ends of a massless board that is 3.0 m long. The board is supported in the middle by a fulcrum. The box on the left has a mass (m) of 25 kg, and the box on the right has a mass (m2) of 15 kg. How far should the ful- crum be positioned from the left side of the board in order to balance the masses horizontally? A. 0.38 m C. 1.1 m B. 0.60 m (D. 1.9 m) 6 m2
The fulcrum should be positioned 1.125 m from the left side of the board to balance the masses horizontally. The closest answer choice is (C) 1.1 m.
To balance the masses horizontally, the torque on the left of the fulcrum must be equal to the torque on the right of the fulcrum. The torque on each side is given by the product of the force and the distance from the fulcrum.
On the left side, the force is the weight of the box, which is mg = (25 kg)(9.8 m/s²) = 245 N. Let x be the distance from the left side of the board to the fulcrum.
On the right side, the force is the weight of the box, which is m2g = (15 kg)(9.8 m/s²) = 147 N. The distance from the fulcrum to the right side of the board is 3.0 m - x.
Setting the torques equal, we have:
245 N x = 147 N (3.0 m - x)
Simplifying and solving for x, we get:
245x = 441 - 147x
392x = 441
x = 1.125 m
Therefore, the fulcrum should be positioned 1.125 m from the left side of the board to balance the masses horizontally. The closest answer choice is (C) 1.1 m.
In this problem, the board is acting as a lever with the fulcrum in the middle. For the board to be in rotational equilibrium, the clockwise and counterclockwise torques acting on the board must be equal. The torque due to the weight of the first box (τ1) is given by τ1 = m1 * g * d, where m1 is the mass of the first box, g is the acceleration due to gravity, and d is the distance from the fulcrum to the first box. Similarly, the torque due to the weight of the second box (τ2) is given by τ2 = m2 * g * (L - d), where m2 is the mass of the second box and L is the length of the board.
At equilibrium, τ1 = τ2, which can be solved to find the value of d that balances the masses horizontally.
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a football punter wants to kick the ball so that it is in the air for 4.1 s and lands 50 m from where it was kicked. assume that the ball leaves 1.0 m above the ground.
Answer:
Explanation:
To determine the initial velocity that the football punter needs to impart on the ball, we can use the equations of motion for a vertically thrown projectile under the influence of gravity.
The vertical displacement of the ball can be calculated using the equation:
d = vi*t + (1/2)at^2
where d is the vertical displacement, vi is the initial vertical velocity, t is the time in the air, and a is the acceleration due to gravity (9.8 m/s^2). Since the ball leaves 1.0 m above the ground and lands 50 m from where it was kicked, we can set d = 49 m.
The horizontal displacement of the ball can be calculated using the equation:
d = vi*t
where d is the horizontal displacement, vi is the initial horizontal velocity, and t is the time in the air. Since the ball should be in the air for 4.1 s, we can set d = 50 m.
We now have two equations with two unknowns: the initial vertical velocity (vi) and the initial horizontal velocity (vi). We can solve for these unknowns by using the equations above.
First, we can calculate the initial vertical velocity using the equation for vertical displacement:
vi = sqrt(2ad + vi^2)
Next, we can substitute this value for vi into the equation for horizontal displacement:
50 = 4.1 * vi
Solving for vi, we find that the initial horizontal velocity must be 12.2 m/s.
Finally, we can use the initial vertical velocity and horizontal velocity to calculate the initial velocity required to kick the ball so that it stays in the air for 4.1 s and lands 50 m from where it was kicked. This can be found using the Pythagorean theorem:
v = sqrt(vi^2 + vi^2)
where v is the initial velocity.
In conclusion, the football punter needs to impart an initial velocity of approximately 14.5 m/s on the ball to achieve the desired results.
A sphere of radius 2.044 mm carries a total charge of 25.89 uC. What is the potential difference (VB-VA) between a location that is 3.28 m from the center of the sphere (point B) and another location that is 6.39 m from the center of the sphere (point A).
Hint: Remember that according to Gauss' Law, the electric field from a uniformly-charged sphere is the same as the electric field from a point charge of the same magnitude charge. What does that mean for the potential?
From point A to point B, the electric flow through a sphere with a radius of 2.044 mm is dependent on the total electrical current encompassed by this surface. Due to B(VB)=kqb=910925.8, there is an electric field.
What is the electric field sphere version of Gauss' law?The electric field from outside sphere is comparable to the area from either a charged particle with the a net charge of Q, according to Gauss' law, whereas the electromagnetic current on the inside of the sphere is zero. For a hollow or hollow sphere, this conclusion holds valid. Therefore, we can state that inside a conducting sphere, the electromagnetic current is zero.
What is the formula and formulation of Gauss's law?According to the Gauss Theorem, the total electric flow through with a closed surface exceeds the net electrical flux the Gauss theorem's mathematical formula is =qenclosed0 if there is an electric field in a vacuum.
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consider an l shaped object where the vertical leg extends from the origin to 0 5 and the horizontal segment extends from the origin to 3 0 assuming the object has a uniform linear mass desnity trhoughout where is the location of the center of mass?
A. (1.5,1.5)
B. (1.5,2.5)
C. (2.5,2.5)
D. The center of mass for an "L" is undefined because there is no single point on the object where it can be supported, such that it will not rotate
E. None of these
The location of the center of mass an l shaped object where the vertical leg extends from the origin to 0 5 and the horizontal segment extends from the origin to 3 0 assuming the object has a uniform linear mass density throughout is undefined.
The correct answer is D. The center of mass for an "L" is undefined because there is no single point on the object where it can be supported, such that it will not rotate. To calculate the center of mass of such an object, you would need to break it up into two separate objects and calculate the center of mass for each.
The center of mass, or centroid, of an object is the point at which the mass of the object is evenly distributed. The center of mass is a point where the object can be supported without tipping over or rotating. The position of the center of mass is determined by the distribution of mass within the object, and it is often used to describe the motion of an object, or to calculate its moment of inertia. The center of mass of an object is often used in physics to calculate the total force and torque acting on the object, and the motion of the object in response to those forces.
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The complete question is:
consider an L shaped object where the vertical leg extends from the origin to 0 5 and the horizontal segment extends from the origin to 3 0 assuming the object has a uniform linear mass density throughout where is the location of the center of mass?
A. (1.5,1.5)
B. (1.5,2.5)
C. (2.5,2.5)
D. The center of mass for an "L" is undefined because there is no single point on the object where it can be supported, such that it will not rotate
E. None of these
at a lab investigating fire extinguisher foams, a heavy ball is accidentally dropped into a deep vat of foam from a crane 5.80 m above the foam. after entering the foam, it sinks to the bottom with a constant velocity equal to the velocity with which it hit the foam. the ball reaches the bottom 5.00 s after it is released.How deep is the vat?
The depth pressure of the vat obtained is 44.076 m.
What is the colour code for fire extinguishers?Extinguisher Type hue of the band acceptable for (class of fire) Comments All Red Water Unsafe around other types of fire. BA Foam Blue Unsafe around other types of fire. Class A fires can also be put out with Powder White B, (E), or "AB(E)" type powder. Dioxide of carbon (E) Black, B Watch out for discharge pressure.
Time from the crane to the bottom of the vat (t) = 3.20 s
H = ½gt²
H = ½ × 9.8 × 3.2²
H = 4.9 × 10.24
H = 50.176 m
Height (H) = 50.176 m from crane to vat's bottom
Crane's height above the vat (h) is 6.10 metres
Depth of vat = H – h
Depth of vat = 50.176 – 6.10
Depth of vat = 44.076 m
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Part A Rank the six combinations of electric charges on the basis of the electric force acting on a Define forces pointing to the right as positive and forces pointing to the left as negative. Rank in increasing order by placing the most negative on the left and the most positive on the right. To rank items as equivalent, overlap them. View Available Hint(s) Reset Help most positive most negative +10C +100 -Inc Inc 91-10 +1 +10C 1+11c +inc +10 Logger Pro The correct ranking cannot be determined In the diagram below, there are three collinear point charges: 91 92 and 9The distance between 41 and 42 is the same as that between 42 and Qs You will be asked to 92 43
The correct order of the six possible combinations of electric charges is as follows: -10C, -Inc +inc, -10C, +1, -Inc +10C, 1+11C, and the most favorable: +10C, +100
What is an electric charge?A subatomic particle experiences a force when it is in contact with an electric and magnetic field due to its electric charge. The majority of charge carriers for the positive and negative forms of electric charges, respectively, are protons and electrons.
Coulomb's law reveals the electric force between two charges,
F = kq₁q₂/r²
we can rank the combinations of charges from most negative force to most positive force:
-10C, -Inc
+inc, -10
-10C, +1
+1, -Inc
+10C, 1+11C
+10C, +100
Therefore, the correct ranking of the six combinations of electric charges from most negative to most positive is:
most negative:
-10C, -Inc
+inc, -10
-10C, +1
+1, -Inc
+10C, 1+11C
most positive: +10C, +100
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a perfectly fitting pot and its lid often stick after cooking, and it becomes very difficult to open the lid when the pot cools down. an easy way of removing the lid is to the food.
Answer:
heat
Explanation:
Heat will cause expansion of food and air and water ( steam) inside of the pot causing the lid to pop off
A 33 newton force forms a 60 degree angle with the displacement of 3.00 m to move a box. How much work is done to the box by the force?
Answer:
Explanation:
Work done = force * displacement = 33Cos60 * 3 = 49.5J
Match the words in the left-hand column to the appropriate blank in the sentences in the right-hand column. use each word only once.- corona- convection zone- core- photosphere- radiation zone- chromosphere1. nuclear fusion of hydrogen into helium occurs in the ______2. energy moves through the sun's ______ by means of the rising of hot gas and falling of cooler gas. 3. nearly all the visible light we see from the sun is emitted from the ______4. most of the sun's ultraviolet light is emitted from the narrow layer called the ______ where temperature increases with altitude. 5. we can see the sun's ______ most easily during total solar eclipses.6. the ______ is the layer of the sun between its core and convection zone.
Nuclear fusion is the process that occurs when two or more atomic nuclei unite. In below given way words can be matched.
What is nuclear fusion?Nuclear fusion is the process that occurs when two or more atomic nuclei unite to generate one or more distinct atomic nuclei containing subatomic particles (neutrons or protons). The mass difference between both the products and the reactants manifests itself as either energy release or absorption.
1. Nuclear fusion of hydrogen into helium occurs in the CORE.
2. Energy moves through the sun's CONVECTION ZONE by means of the rising of hot gas and falling of cooler gas.
3. Nearly all the visible light we see from the sun is emitted from the PHOTOSPHERE.
4. Most of the sun's ultraviolet light is emitted from the narrow layer called the CHROMOSPHERE where temperature increases with altitude.
5. We can see the sun's CORONA most easily during total solar eclipses.
6. The RADIATION ZONE is the layer of the sun between its core and convection zone.
Therefore, in above given way words can be matched.
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As a 6 x 102 kg object is pushed horizontally with a force of 1 x 102 N, it gains 5 x 102 J of kinetic energy. Through what distance did the force act?
The force acted through a distance of 5 meters.
How is force related to the surface area?Force and surface area are related through pressure, defined as the force per unit area. Force is inversely proportional to the surface area over which the force is distributed. If the surface area is increased, the pressure exerted by a given force will decrease; if the surface area is decreased, the pressure will increase.
How do you calculate pressure?Pressure is defined as the force per unit area and is typically measured in units of pascals (Pa) or pounds per square inch (psi). The formula for calculating pressure is Pressure (P) = Force (F) / Area (A).
As we know:
F * d = ΔK
Solving for d, we get:
d = ΔK / F
Substituting the given values, we get:
d = (5 x 10² J) / (1 x 10² N)
d = 5 meters
Therefore, the force acted through a distance of 5 meters.
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determine the displacement of the log if the truck at c pulls the cable 10 ft to the right. (figure 1)
The displacement of the log if the truck at c pulls the cable 10 ft to the right will be 3.33ft in the opposite direction.
2Sb+(Sb-Sc)=l
3Sb-Sc=l
3deltaSb-deltaSc=0
3deltaSb=deltaSc
3deltaSb=-10
Sb=-3.3333
negative sign here indicates the opposite direction of the displacement.
Displacement is known as the change in position of an object. It is a vector quantity which means it has both direction and magnitude. The representation of displacement is by an arrow that points from the starting position to the final position. For example- If an object moves from A position to B, then the object's position changes.
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