1. An object is moving with an acceleration of 2 m/s². What will the acceleration be if
the force applied to the object is tripled? Explain.
Show work

Option A) converging lens  , is the correct answer

What is lens ?

A lens is  a transparent material, usually circular, with two polished surfaces, one or both of which are curved, either convex (curved) or concave (deep). Curves are almost always spherical. That is, the radius of curvature is constant. Lenses have the valuable property of producing images of objects in front of us. Singlet lenses are used in eyeglasses, contact lenses, pocket magnifiers, projection condensers, signal lights, viewfinders, and simple box cameras

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Blue light has a shorter wavelength than red light, so it would be expected to have a greater resolution.  However, resolution is not solely determined by the color of light used.

Blue light has a shorter wavelength than red light, which allows it to be focused to a smaller spot and produce a higher resolution image. When it comes to resolution, blue light has an advantage over red light due to its shorter wavelength. This is because, shorter wavelength light can be focused to a smaller spot, which results in a higher resolution image, as the image details are captured in a smaller space.

There are other factors that also play a role in the resolution of an image, such as the size and quality of the lens, as well as the sensitivity of the camera or sensor used. A good quality lens with high resolution capabilities, regardless of the color of light it is using, can produce a high resolution image. Similarly, a high sensitivity camera or sensor will also lead to a higher resolution image. In summary, while blue light has an inherent advantage over red light when it comes to resolution, other factors such as the lens and camera or sensor used also play a crucial role in determining the resolution of an image.

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In solving an exponential equation, If the exponential equation has the form ab^x=c, first "take the log of both sides" and then "bring down any exponents".

Consider the case where you have given a log of x plus 3 and it equals 10. There is no base because this is the common log. It is a log base 10 if there is no base. In this case, log base 10 of x + 3 equals 2. A log is a time expression. In this case if we take log on both sides we will get constant logC on the RHS and Xlogab on the LHS. we can put log(ab)= loga + logb. X will stay as a product. In this case, we can not cut logs from both sides. So the equation will be harder to solve. this is why taking log on both sides is not a sound technique, especially when exponents are involved.

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The acceleration of the car due to force applied is 0.298 m/s^2.

There are two parts to the gravitational force acting on a slope. They are the driving force (fs) that pushes the block down the hill and the friction-producing normal force (fn) that pushes into the slope.ma = F (applied) - mgsinФ

m = mass = 500Kg;  a = acceleration;  F (applied) = Applied force = 1000N

Ф = angle of slope = 10⁰; g = Acceleration due to gravity = 9.8 m/s^2

500 x a = 1000 - (500 x 9.8 x sin10);

a =[ 1000 - (500 x 9.8 x sin10)] / 500;

  = 0.298 m/s^2.

Two elements ultimately affect the stability of the slope. They are the slope's angle and the strength of the materials used to construct it.

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1. Condition on n_1 and n_2  for which this expression make senses is -

The incident ray, the refracted ray, and the normal at the point of incidence all reside in the same plane, according to Snell's equation of refraction. For the given pair of media, the sine of the angle of incidence to the sine of the angle of refraction ratio is constant.

2. The critical angle is the angle of incidence at which total internal reflection occurs instead of just refraction when the angle of refraction is 90 degrees. Total internal reflection is an optical phenomena where waves arriving at the interface between two media entirely reflect back into the first medium instead of being refracted into the second.

3. When a light beam travels from the water (n=1.33) to the air (n=1), the critical angle is 48 degrees. This implies that all light rays will be (a) completely absorbed by the water if their angles of incidence in the water are larger than 48 degrees.

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The change in EPE (ΔU) as a charge of (a) 2.2 x 10⁻⁶ c and (b) -1.1 x 10⁻⁶c moving from A⇒B given that the change in EP (ΔU) between the points is 24V are 5.28 x 10⁻⁵ J and 2.64 x 10⁻⁵ J respectively.

The change in electric potential energy (ΔU) can be calculated using the equation ΔU = qΔV, where q is the charge and ΔV is the change in electric potential between the two points.

For a charge of 2.2 x 10⁻⁶ c moving from A to B:

ΔU = (2.2 x 10⁻⁶ c)(24 V) = 5.28 x 10⁻⁵ J

For a charge of -1.1 x 10⁻⁶ c moving from A to B:

ΔU = (-1.1 x 10⁻⁶ c)(24 V) = -2.64 x 10⁻⁵ J

The negative sign on the second case indicates that the work done would be done against the direction of the electric field and thus the energy would be absorbed from the field.

Therefore, the correct answers are as given above.

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Peter Alward identifies reasoning as that which the practice of philosophy consists.

Peter Wallace Brannen Alward is a Canadian philosopher. He is an academic by honour, known to be a Professor in Philosophy and the Department Head in Philosophy at the University of Saskatchewan. He is popular for his publications on philosophy of fiction, philosophy of art and environmental philosophy.

Key to Alward's argument is a notion known as the "narrative informant" who relates the reader's encounter with fictional events through - sometimes unreliable - reporting. Alward portrays the confusion about fiction ideas from a failure to properly relate between writing fiction and telling stories, while creating a concept whereby the writer is a sculptor who constructs works of fiction out of words.

Therefore, the correct answer is as given above

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Answer:

2000 Joules.

Explanation:

To calculate the kinetic energy of a 40 kg skater traveling at a speed of 10 m/s, we can use the equation:

KE = 0.5 • m • v²

Where:

KE = kinetic energy

m = mass (in kg)

v = velocity (in m/s)

Substituting the given values into the equation:

KE = 0.5 • 40 kg • (10 m/s)²

KE = 0.5 x 40 kg x 100 m²/s²

KE = 2000 Joules

So, the kinetic energy of a 40 kg skater traveling at a speed of 10 m/s is 2000 Joules.

The magnetic flux across the loop in the figure below, with a = 30 cm, is -30bB. How many magnetic lines of force are present in a specific area is determined by the magnetic flux.

For instance, the magnetic flux density is lower if fewer magnetic lines cover a large region of cross section. Knowing the magnetic flux also enables us to make an educated guess about the magnitude of the magnetic field in a particular area. The magnetic flux through a surface in electromagnetism, a branch of physics, is the surface integral of the normal component of the magnetic field (B) travelling through that surface. represented by A or B.

= ABcos(theta), = baBcos(theta), and = -30bB

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The image is formed 8cm in front of the lens and is a real image.

We would have to remind ourselves that if we are looking at the lens then we have to be looking at any reflecting surface that we know. There are two kinds of lens that we have, we have the concave and the convex lens.

We know that the focal length of the convex lens is positive thus we have;

1/f = 1/u + 1/v

f = focal length

u = object distance

v = image distance

Thus;

1/8 = 1/4 - 1/v

1/v = 1/4 - 1/8

v = (0.25 - 0.125)^-1

v = 8 cm

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Important Formulas:
[tex]F=ma[/tex]

force(measured in newtons) = mass(measured in kg) * acceleration(measured in m/s^2)

__________________________________________________________

Given:

[tex]F=784N[/tex]

[tex]a=9.8m/s^2[/tex] (acceleration due to gravity)

[tex]m=?[/tex]

__________________________________________________________

Rearranging force formula to make mass the subject:

[tex]F=ma[/tex]

[tex]\dfrac{F}{a} =\dfrac{ma}{a}[/tex]

[tex]m=\dfrac{F}{a}[/tex]

__________________________________________________________

Finding mass:

[tex]m=\dfrac{F}{a}[/tex]

[tex]m=\dfrac{784}{9.8}[/tex]

__________________________________________________________

[tex]\fbox{m = 80kg}[/tex]

Answer: b

Explanation: i did this before lol

The answer is A) > 34.6°C

The normal boiling point of a substance is the temperature at which it changes phase from liquid to gas at a pressure of 1 atm. At a pressure of 1.3 atm, the boiling point of a substance will be different.

The boiling point of a substance increases with an increase in pressure, so at 1.3 atm, the boiling point of diethyl ether will be greater than 34.6°C.

Therefore, the answer is A) > 34.6°C

It's worth noting that the boiling point elevation equation can be used to calculate the boiling point at different pressures, but it requires the knowledge of the substance's molar heat of vaporization.

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G. Stanley Hall was a pioneer in research on reflex behavior showing that reflexes could occur in the absence of brain involvement.

What exactly is a reflex?

The essence of Descartes' description has been captured in modern definitions of reflexes: an action or movement of the body that occurs automatically, or without thinking, as a reaction to something.

21 These definitions have three main components: a stimulus, subconscious processing, and a reaction.

What distinguishes the reflex?

One possible way to distinguish reflexive from conscious behaviors is to determine whether the stimulus for the behavior is external (e.g., a hammer tap or the shine of a light) or internal (e.g., hunger or love). This distinction appeals to our intuitive understanding that reflexes are typically subconscious responses to external stimuli. This proposal, however, has a number of flaws.

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K=0.729 N/m is the correct answer .

What is Energy ?

Energy, in physics the ability to do work. It can exist in electrical, kinetic, thermal, electrical, chemical, nuclear, or various other forms. There is also heat and work. H. After transmission, energy is always referred to according to its nature. Thus, the heat transferred can become thermal energy, while the work done can appear as mechanical energy. All forms of energy are associated with movement. For example, any object has kinetic energy when it is in motion. A taut device such as a bow or spring can create motion even when stationary. Because of its composition, it contains potential energy. Similarly, nuclear energy is potential energy as it results from the composition of subatomic particles within the nucleus .

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The solution, based on the stated statement, was 10 m/sec when she started to halt.

According to the work-energy theorem, the net work performed by forces acting on an item equals the change in kinetic energy.

Mobility (kinetic energy) and storing mechanical energy are the two forms (potential energy).

The change there in particle's thermal energy is equal to the net work performed on the particle: W = K B - K A

The relationship between kinetic energy and an object's mass and squares of its velocity is direct: K.E. = 1/2mv². The kinetic energy is measured in kilograms-meters squared each for a second squared if the mass is measured in kg and the velocity is measured in meters per second.

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The force F can be expressed as F = m*9.8 m/s2.

Force is a physical quantity that is a measure of an object's interaction with other objects. It is a vector, meaning it has both magnitude and direction. Force can cause an object to accelerate, decelerate, change its direction, or remain in its current state. Force is measured in newtons (N) in the SI system of units. Force is responsible for many of the phenomenon we observe in nature such as gravity and friction.

The force that the person exerts on the ice, F, can be expressed in terms of mass, m, and the gravitational constant, g, as follows: F = m*g. This force is the result of the downward acceleration of the person's mass due to gravity. The force is equal to the mass multiplied by the acceleration caused by gravity, which is 9.8 m/s2. Therefore, the force F can be expressed as F = m*9.8 m/s2.

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The torque about the axis of rotation on the left produced by force F1onB is 600 Nm and the torque about the axis of rotation on the left produced by force F2onB is also 600 Nm. Force F3onB must be exerted at a distance of 0.5 m from the axis of rotation to balance the torques produced by F1onB and F2onB.

F1onB Torque: 600 Nm

F2onB Torque: 600 Nm

F3onB Distance: 0.5 m

1. To determine the torque about the axis of rotation on the left produced by force F1onB, we need to calculate the moment arm. The moment arm is the perpendicular distance from the axis of rotation to the line of action of the force. The moment arm for F1onB is 0.5 m, so the torque produced by F1onB is 600 Nm (F1onB x Moment Arm).

2. To determine the torque about the axis of rotation on the left produced by force F2onB, we need to calculate the moment arm. The moment arm for F2onB is 0.5 m, so the torque produced by F2onB is also 600 Nm (F2onB x Moment Arm).

3. To determine the distance from the axis of rotation at which F3onB must be exerted to balance the torques produced by F1onB and F2onB, we need to use the equation Torque = Force x Moment Arm. Since the total torque must equal 0, we can set up the following equation: 600 Nm + 600 Nm + (F3onB x Moment Arm) = 0. Solving for the Moment Arm, we get Moment Arm = -0.5 m, which is the distance from the axis of rotation at which F3onB must be exerted to balance the torques produced by F1onB and F2onB.

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Answer: The normal force the rider experiences is the sum of the gravitational force acting on the rider and the friction force acting between the rider and the wall of the barrel.

Normal force = gravitational force + friction force

The gravitational force acting on the rider can be calculated using the weight of the rider, which is the mass of the rider multiplied by the acceleration due to gravity:

Weight = mass * acceleration due to gravity

Weight = 75 kg * 9.8 m/s^2 = 735 N

The friction force acting between the rider and the wall of the barrel can be calculated using the coefficient of friction and the normal force:

Friction force = coefficient of friction * normal force

Solving for the normal force, we get:

Normal force = Weight / (1-coefficient of friction) = 735 N / (1-0.5) = 1470 N

To find the minimum speed the ride can turn so that the rider doesn't slide down the wall, we can use the formula

velocity = square root of ( (Normal force * radius ) / (mass))

Minimum speed = √(1470 N * 4 m / 75 kg) = 14.5 m/s (round to the nearest tenth)

The ratio of compression R for the equation E=100×(1-1/5×[tex]\sqrt{R^{2} }[/tex] ) is approximately 2.89.

Efficiency is described by the equation E=100×(1-1/5×[tex]\sqrt{R^{2} }[/tex] )

We may enter this value into the equation to determine the value of R since E = 42.13.

E=100×(1-1/5×[tex]\sqrt{R^{2} }[/tex] ) = 42.13

Solving for R, we get:

1-1/5×[tex]\sqrt{R^{2} }[/tex] = 0.4213

1/5×[tex]\sqrt{R^{2} }[/tex] = 0.5787

[tex]\sqrt{R^{2} }[/tex] = 2.8935

R² = 8.3838

R = [tex]\sqrt{8.3838}[/tex]

R = 2.89

2.89 is the result of rounding the answer to two decimal places.

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If your well water pressure is higher than what is considered typical (between 40 and 60 psi), you should change the pressure switch.

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Answer:  the velocity of car A greater than Car b

Explanation: what is velocity?

Velocity is the parameter which is different from speed, can be defined as the rate at which the position of the object is changed with respect to time, it is basically speeding the object in a specific direction in a specific rate.

Velocity is a vector quantity which shows both magnitude and direction and The SI unit of velocity is meter per second (ms-1). If there is a change in magnitude or the direction of velocity of a body, then it is said to be accelerating.

represented by the equation v = Δs/Δt.

n=3 . is the correct answer .

What is Energy ?

Energy, in physics the ability to do work. It can exist in electrical, kinetic, thermal, electrical, chemical, nuclear, or various other forms. There is also heat and work. H. After transmission, energy is always referred to according to its nature. Thus, the heat transferred can become thermal energy, while the work done can appear as mechanical energy. All forms of energy are associated with movement. For example, any object has kinetic energy when it is in motion. A taut device such as a bow or spring can create motion even when stationary. Because of its composition, it contains potential energy. Similarly, nuclear energy is potential energy as it results from the composition of subatomic particles within the nucleus .

a)

The energy of a hydrogen atom in nth level is given by

En=-13.6/n2

=>2.76 =13.6/n2

n=sqrt[4.9275]=2.22

n=3 (approx)

b)

For n=3

E=-13.6/32 =-1.51 eV

Kinetic energy of freed electron is

K=2.76-1.51 =1.25 eV

=>(1/2)mV2 =1.25 eV

1/2)(9.11*10-31)V2=1.25*(1.6*10-19)

V=6.6263*105 m/s

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The answer is (d) i.e. People 19 and under.

Rates of bipolar disorder have risen dramatically in the twenty-first century, especially among people 19 and under.

The twenty-first century has seen a dramatic rise in the prevalence of the bipolar disorder among people aged 19 and under. This increase is likely due to a combination of factors, such as improved awareness and diagnosis of the disorder and changes in lifestyle and environment. For instance, increased stress and pressure due to digital technology, social media, and academic demands are thought to be contributing to the rise in bipolar disorder.

Additionally, changes in diet and sleep habits due to the convenience of digital technology may also be contributing to the increased prevalence of the disorder. Ultimately, the rise in bipolar disorder is concerning, and further research is needed to understand and address the factors driving this increase.

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Answer: 33 miles

Explanation: multiply 3x11 which equals 33

Answer: 33 miles

Explanation:

The length of one of the cube's sides is 3.97 mm.

The area of the cube is calculated by applying the following formula as shown below.

Young's modulus is equal to ratio of shear stress to shear strain.

E = Shear stress / Shear strain

Shear stress = F / A

where;

Shear strain = e / L

Shear strain =  tanθ

E = Shear stress / ( tanθ )

E = ( F/Atanθ )  

A = ( F / Etanθ )

Young's modulus of brass = 1 x 10¹¹ Pa

A = ( 1650 / 1 x 10¹¹  x   tan(0.06)

A = 1.576 x 10⁻⁵ m²

The length of a side of the cube is calculated as follows;

L² = A

L = √ A

L = √ (1.576 x 10⁻⁵ )

L = 3.97 x 10⁻³ m

L = 3.97 mm

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The ranking of the pucks in order of magnitude of acceleration would be: B>A>C, with puck B having the greatest acceleration, followed by puck A and then puck C.

To rank the three hockey pucks in order of the magnitude of their acceleration, we need to consider the net force acting on each puck and their velocity. Since all three pucks are identical, their mass is the same, and the net force acting on each puck is 3N. Puck A is moving in the opposite direction of the force, thus the net force acting on it is in the opposite direction of its motion, resulting in a deceleration.

Puck B is instantaneously at rest, thus the net force acting on it will cause it to accelerate. Puck C is moving with a velocity of 7m/s at right angles to the force, thus the net force acting on it will cause it to move in a circular path, resulting in centripetal acceleration.

Complete Question :

Each of the three identical hockey pucks shown in the figure is acted on by a 3N force. Puck A moves with a speed of 7 m/s in a direction opposite to the force; puck  B is instantaneously at rest; puck C moves with a speed of 7 m/s at right angles to the force.

Rank the three pucks in order of the magnitude of their acceleration, starting with the smallest.

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The time period T=0.167 and if the mass is doubled the modified frequency will be f'= 4.242Hz.

The time for one complete vibration is called the period (T) and is measured in seconds. If the period is large the frequency is low, and If the period is small the frequency is high.

The time period is inversely proportional to a frequency which is calculated as:

T=1/f

Given f=6.0Hz substitute in the formula

T=1/6

Time period(T)=0.167

Let, k be the spring constant and m be the mass of the cart then,

[tex]f=\frac{1}{2\pi} \sqrt{\frac{k}{m} } =6.0Hz[/tex]

If the mass is doubled by the modified frequency,

[tex]f'=\frac{1}{2\pi } \sqrt{\frac{k}{2m} } \\\\f'=\frac{1}{\sqrt{2} } \frac{1}{2\pi } \sqrt{\frac{k}{m} } \\\\f'=\frac{1}{\sqrt{2} } f\\\\f'=\frac{6.0}{\sqrt{2} } \\[/tex]

f '=4.242Hz.

If the spring constant is doubled by the modified frequency,

[tex]f'=\frac{1}{2\pi } \sqrt{\frac{2k}{m}}\\\\f'=\sqrt{2} \frac{1}{2\pi } \sqrt{\frac{k}{m} } \\\\f'=\sqrt{2} f=\sqrt{2} *6[/tex]

f '=8.485Hz

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Answer:

B. They represent non-contact electrical forces

It can be important to rank moral rules in order of importance because it allows for clear decision-making and prioritization in situations where multiple moral considerations are present. However, ranking moral rules can also be difficult and subjective, as different individuals and cultures may place different values and priorities on different moral principles.

The principle of non-harm, which holds that it is morally wrong to cause harm to others.

The principle of autonomy, which holds that individuals should be free to make their own choices and pursue their own goals.

The principle of fairness and justice, which holds that individuals should be treated equally and that resources and opportunities should be distributed fairly.

The principle of compassion and empathy, which holds that individuals should care for and show concern for the well-being of others.

The principle of responsibility and accountability, which holds that individuals should be held responsible for the consequences of their actions.

It's important to keep in mind that everyone have different moral principles and they might have different order of importance.

It's important to note that this ranking is not definitive, and different individuals and cultures may have different priorities and values when it comes to moral principles.