the air pressure in a tank is measured using an inclined manometer whose arm is inclined 45 degree from the horizontal line. the densities of the air and water are 1.225 kg/m3 and 1000 kg/m3, respectively. determine the gauge pressure of air in the tank. The asmopheric pressure is 100 kPa. Assume the gravitational acceleration is 9.8 m/s2

Answer:

The velocity of the crossbow as it recoils is 5 m/s. This can be calculated using the conservation of momentum. The momentum of the system before the bow was triggered is 0 (since the bow is stationary). After launching the bolt, the momentum of the system is (0.10 kg * 25 m/s), so in order for the momentum of the system to remain constant, the crossbow must recoil with a momentum of (5.0 kg * -5 m/s).

Answer:

62.6 degrees fahrenheit

If the posted rates for cab fare are $4 plus $1 per mile, then the passenger can travel 11 miles in the cab for $15.

The given data is as follows:

The general fare rate of the cab  is $4

The cost per each mile is $1

Total remaining cash available = $15

let us assume that n is the number of miles that passenger travel in the cab

From the above-given information, we can write the equation as follows:

Total money = Cost of fare + cost per mile

$15 = $4 + $1(n)

1(n) = 15-4

n = 11/1

n = 11 miles.

Therefore, we can conclude that the passenger can travel 11 miles in the cab for $15.

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Answer:

18.333 degrees celsius

Explanation:

Correct me if im wrong

65 degrees Fahrenheit is equal to 18.33 degrees Celsius.

Celsius (°C) and Fahrenheit (°F) are two different temperature scales used to measure temperature. The Celsius scale is widely used in most countries around the world, while the Fahrenheit scale is primarily used in the United States and a few other countries.

To convert 65 degrees Fahrenheit to Celsius, the following formula is used:

°C = (°F - 32) × 5/9

°C = (65 - 32) × 5/9

°C = 33 × 5/9

°C = 165/9

°C = 18.33

Therefore, 65 degrees Fahrenheit is approximately equal to 18.33 degrees Celsius.

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While whirling a can (or any object attached to a string) in a circular path, the direction of the force exerted on the can is toward the centre of  circular path. This force is called the centripetal force.

Centripetal force is a force that acts on an object moving in a circular path and is directed toward the centre of the circle. It is what keeps the object moving in a circular path and prevents it from flying off in a straight line.

The magnitude of the centripetal force is proportional to the mass of the object, it's  velocity, and the radius of the circular path. It can be calculated using the equation[tex]F = mv^2/r[/tex], where F is the centripetal force, m is the mass of the object, v is its velocity, and r is the radius of the circular path.

For example, while going around a curve in a car, the friction between the tires and the road provides the necessary centripetal force to keep the car moving in a circular path. Another example is a planet moving in orbit around the sun, where the gravitational force of the sun acts as the centripetal force.

In the case of a can attached to a string, the centripetal force is provided by the tension in the string. The string provides the necessary inward force to keep the can moving in a circular path, and the tension in the string is proportional to the centripetal force.

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The spring constant of the spring is 10,000 N/m.

The constant is a fixed value that does not change in response to external influences. It is often used in mathematics to represent a number that remains constant despite changes in the context or situation. In physics, constants are used to represent physical properties of matter, such as the speed of light or the force of gravity. In computing, constants are used to represent values that need to be used multiple times within a program. Constants can be used to improve code readability and maintainability, as well as to prevent errors associated with using the same value multiple times.

The spring constant, k, is a measure of how stiff the spring is; it is equal to the ratio of the force applied to the spring divided by the amount of displacement (or compression) of the spring. Therefore, the spring constant of the spring can be calculated as:

k = F/x

= 100 N/0.010 m

= 10,000 N/m

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i think the stopping force would be different as a haystack has less friction whilst the brick wall would have more friction

Explanation:

Infrared radiation has longer wavelengths compared to visible radiation, and lower energy per photon.

Infrared radiation (IR) is a type of electromagnetic radiation that is not visible to the human eye. It has a longer wavelength and lower frequency than visible light, and it is part of the electromagnetic spectrum that also includes radio waves, microwaves, visible light, ultraviolet radiation, X-rays, and gamma rays.

Infrared radiation is often associated with thermal radiation, which is the emission of electromagnetic waves from objects that are at a temperature above absolute zero. This is because infrared radiation is often emitted by objects that are warm, and it is this type of infrared radiation that is responsible for our ability to feel heat.

Infrared radiation has a wide range of applications, including in remote sensing, thermal imaging, and heating. For example, in remote sensing, infrared radiation can be used to observe and study the Earth and other celestial objects, as well as to detect and monitor changes in temperature, vegetation, and other physical properties. In thermal imaging, infrared cameras are used to detect heat signatures and create images based on temperature differences. In heating, infrared heaters use infrared radiation to heat objects and materials directly, rather than heating the air around them.

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The tendency of an object to resist a change in velocity is called inertia. It is the resistance of an object to a change in its direction or speed of motion.

This property of matter is explained by Newton's First Law of Motion, which states that an object at rest or in motion will remain in that state unless an external force acts on it.

Inertia is the basis for the concept of momentum, which is the product of an object's mass and velocity.

When an object is in motion, it has momentum and is resistant to any change in its velocity. This is because it has inertia, which is the tendency of an object to resist a change in motion.

Inertia is an important concept in physics and is essential for understanding the motion of objects in the universe.

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Answer:

77 degrees fahrenheit

Explanation:

Correct me if im wrong

When the masses of two point masses increase while the distance between them remains constant, the gravitational force between them increases proportionally to the square of the increase in mass.

Gravitational force is the force of attraction between two masses. It is one of the four fundamental forces of nature and is responsible for the motion of celestial bodies, such as planets and stars, as well as the behavior of objects on the surface of the Earth.

The force of gravity between two masses can be described by Newton's law of universal gravitation, which states that every particle in the universe attracts every other particle with a force proportional to the product of their masses and inversely proportional to the square of the distance between them.

The formula for the gravitational force is given by Newton's law of universal gravitation:

F = G * (m1 * m2) / d^2

where:

F is the gravitational force between two masses

G is the gravitational constant (G = 6.67 x 10^-11 N m^2/kg^2)

m1 and m2 are the masses of the two objects

d is the distance between the centers of the two masses.

The gravitational force between two point masses is given by the formula:

[tex]F = G * (m1 * m2) / d^2[/tex]

where G is the gravitational constant and m1 and m2 are the masses of the two objects.

If the masses of the two point masses are increased from m to 3m, then the new formula for the gravitational force becomes:

[tex]F' = G * (3m * 3m) / d^2 = 9 * (G * (m * m) / d^2)[/tex]

Thus, the gravitational force between the two point masses is increased by a factor of 9 when the masses are increased to 3m.

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The magnitude of the electric field between the plates of the capacitor when it is fully charged is 4500 V/m, which corresponds to option A.

The magnitude of the electric field between the plates of a parallel plate capacitor can be calculated using the formula:

E = V/d

Where

In this case, the voltage V is given as 9 V and the plate separation d is given as 2 mm (which can be converted to 0.002 m). Substituting these values into the formula, we get:

E = 9 V / 0.002 m

E = 4500 V/m

Therefore, the magnitude of the electric field between the plates of the capacitor when it is fully charged is 4500 V/m, which corresponds to option A.

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True - the change of potential due to electrotonic spread will get larger the further away from the starting point it travels.

Electrotonic spread is the process by which electrical signals are transmitted through a neuron. When a neuron is stimulated, an electrical charge is created and propagated along the neuron's axon.

This charge causes a change in the potential difference or voltage across the neuron's membrane, known as a local potential.

As the charge moves away from the starting point, the change in potential due to electrotonic spread increases.

This is because the charge dissipates as it moves away from the starting point, resulting in a larger voltage change.

The further away from the starting point the charge travels, the larger the change of potential due to electrotonic spread.

This process is essential for the transmission of electrical signals in the nervous system and allows neurons to communicate with each other.

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Answer:

21

Explanation:

The Georgia power charge for 30 days when their going rate is 11 cents/kw-hr every day will be 108.9 watts.

Electric power is the rate at which electrical energy is transferred from an electric circuit. The SI unit of power is expressed in the watt, one watt is equal to one joule per second.

The amount of power rate for one minute = 1.1 × 11/100 = 1.1 × 0.11 = 0.121 watts

The amount of power rate for 30 minutes = 0.121 × 30 = 3.63 watts

The power rate for 30 days(a month) will be = 3.63 × 30 = 108.9 watts

Therefore, the power charge for 30 days (one month) is 108.9 watts.

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When the force and displacement are both in the same direction, positive work is produced. When the force and displacement are in opposing directions, negative work is done. When the force and displacement are perpendicular to one other, zero work is done.

When positive work is performed, the amount of energy transmitted to the object rises, and the work is said to be positive. For example, when a person lifts a box off the ground, the force applied is upward, as is the displacement of the box. As a result of the individual donating energy to the box, constructive work is done on it.

When negative work is performed, the energy transmitted to the object decreases, and the work is referred to be negative. When a person lowers a box to the ground, for example, the force applied is downward, whereas the displacement of the box is upward. As a result of the individual drawing energy away from the box, negative work is done on it.

There is no energy transfer in the case of zero work done, and the work is said to be zero. When a person moves a box over a level surface, for example, the force applied is forward, whereas the displacement of the box is horizontal. As a result, there is no work done on the box.

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A cardiac defibrillator can be modeled as a parallel plate capacitor, Capacitance of the defibrillator is 1 F. Hence, the correct option is (E).

The energy stored in a capacitor is given by the equation:

E = 1/2 * C * V^2

where E is the energy in joules, C is the capacitance in farads, and V is the voltage across the capacitor in volts.

We are given that the defibrillator has a stored energy of 1 kJ (1000 J) when charged to a voltage of 2 kV. Substituting these values into the equation, we get:

1000 J = 1/2 * C * (2 kV)^2

Simplifying this equation, we get:

C = 1000 J / (1/2 * (2 kV)^2) = 1 F

Therefore, the capacitance of the defibrillator is 1 F.

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The three conditions necessary for a lunar or solar eclipse are as follows:

When one celestial body partially or entirely blocks out the light from another celestial body, the occurrence is known as an eclipse. Solar eclipses and lunar eclipses are the two primary categories of eclipses.

For a lunar eclipse, the Earth is positioned between the Sun and the Moon and the Moon must be on the other side of the Earth from the Sun during a full moon for the alignment to take place. For a solar eclipse, the Moon is positioned between the Sun and the Earth and the Moon must be between the Earth and the Sun during a new moon for the alignment to take place.

Therefore, The three conditions necessary for a lunar or solar eclipse are as follows:

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The correct option is A = 1897 N/m²

Given that,

Mass m=  20,300 kg.

Area A =105 m²

Pressure different between top and bottom

Assume the plane has reached a cruising altitude and is not changing elevation. The sum of the forces in the vertical direction is given as

∑Fy = Wp + FL = 0

where

Wp = is the weight of the plane, and

FL is the lift pushing up on the plane.

Let's solve for FL since the mass of the plane is given:

Wp + FL = 0

FL = -Wp

FL = -mg

FL = -20,300× -9.81

FL = 199,143N

FL should be positive since it is opposing the weight of the plane.

Let's Equate FL to the pressure differential multiplied by the area of the wings:

FL = (Pb −Pt)⋅A

where Pb and Pt are the static pressures on the bottom and top of the wings, respectively

FL = ∆P • A

∆P = FL/A

∆P = 199,143 / 105

∆P = 1896.6 N/m²

∆P ≈ 1897 N/m²

Hence  1897 N/m² is the correct answer.

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Temperature of 73 °F is equivalent to 22.78 °C.

The physical concept of temperature indicates in numerical form how hot or cold something is. A thermometer is used to determine temperature.

Temperature conversion is a specific process of converting a given temperature from one temperature scale to another. In this case, we are converting from Fahrenheit (°F) to Celsius (°C).

The formula to convert from Fahrenheit to Celsius is:
°C = (°F - 32) × 5/9

Using this formula, we can convert 73 °F to °C:
°C = (73 - 32) × 5/9
°C = 41 × 5/9
°C = 22.78

So, 73 °F is equivalent to 22.78 °C.

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Answer:

The Supreme Court decision in Marbury v. Madison established the principle of judicial review. This means that the Supreme Court has the power to declare laws or actions of the executive and legislative branches unconstitutional if they violate the Constitution. The decision was made in 1803 and is considered a landmark case in American law and politics. It established the idea that the judiciary is a coequal branch of government and has the responsibility to interpret the Constitution and ensure that the other branches of government do not exceed their constitutional authority.

Explanation:

The given statement that when resonance occurs, there is a dramatic decrease in the amplitude of a sound wave is false.

Resonance happens when a sound wave's frequency coincides with an object's inherent frequency, increasing the sound wave's amplitude.

Standing waves may develop in the tube as a result of resonance, which amplifies the vibrations' amplitude. The resonant frequencies depend on how long the air column is. The resonating air column amplifies solely the natural frequencies, as opposed to the mouth or reed which produce a combination of diverse frequencies.

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The electron's speed is measured in terms of the distance from the sphere's surface as -3.6 x 1028J.

We can find out an object's actual size by knowing how far away it is. The area an object occupies in space above us can be measured. Once we know how far away it is, we can calculate its true size.

Distance is an object's ultimate motion in an uninspired fashion. Regardless of the initial or concluding point, travel can be referred to as the amount of space an object having spanned.

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The best example is Preconventional Morality. The correct option is C.

Preconventional morality is the first level of moral development in Lawrence Kohlberg's theory of moral development.

At this stage, individuals make decisions based on a desire to avoid punishment or gain rewards. They follow rules only to avoid punishment, and they have a self-centred view of the world.

According to my research on Lawrence Kohlberg's level of morality, I can say that the level being described is called Preconventional Morality based on the information provided within the question.

This is the first and second level of morality according to Kohlberg, and it focuses on obedience/reward, punishment, and self-interest. As stated in the question.

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The complete question is given below.

At which of Lawrence Kohlberg's levels of morality do people follow unvarying rules based on rewards and punishment?

a. Preconventional

b. Conventional

c.. Postconventional

d. Unconventional

Answer: It has the skill to nest

sorry if I'm wrong

Answer:

B: A colorful beak

Explanation:

i hope this helped!

The true meaning of IQ Intelligence Quotient, which is a measure of an individual's cognitive abilities or intellectual potential.

IQ tests are designed to assess various aspects of cognitive functioning, such as problem-solving, abstract reasoning, memory, and perceptual speed. The true meaning of IQ is a subject of ongoing debate among psychologists and researchers. Some experts view IQ as a reliable and valid measure of intelligence, while others argue that it has limitations and may not capture the full range of human intellectual abilities. IQ scores are typically standardized, with a mean score of 100 and a standard deviation of 15 points. This means that the majority of people score between 85 and 115, while scores above 130 are considered high and scores below 70 are considered low. It is important to note that IQ scores do not reflect an individual's entire range of abilities, nor do they determine a person's success or potential in life. Many factors, such as motivation, emotional intelligence, creativity, and social skills, can also contribute to an individual's overall success and well-being. Furthermore, IQ tests have been criticized for their potential cultural and social biases, as well as their limited ability to capture certain types of intelligence, such as emotional intelligence or practical intelligence. As such, IQ scores should be interpreted with caution and used in conjunction with other measures of intellectual and personal functioning.

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The altitude of the satellite above the surface of the Earth is 1,528.48 km. The given parameters; are the speed of the satellite, v = 6.9 km/s. the radius of the Earth, R = 6370 km.

A radius is a measure of distance from the centre of any circular object to its outermost edge or boundary. A radius is not only a dimension of a circle but also for a sphere, semi-sphere, cone with a circular base, and a cylinder having circular bases.  

A circle can be defined as the locus of a point moving in a plane, in such a manner that its distance from a fixed point is always constant.

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An object placed at a greater altitude will experience a reduced acceleration caused by gravity compared to an item located at a lower altitude because the value of g drops as the object's distance from the planet's core increases.

The radius and mass of the planet, as well as the separation between the item and the planet's centre, all affect the value of g.

Several aspects of physics, such as the motion of objects in free fall, the determination of escape velocity, and the examination of planets' and other celestial bodies' orbits, depend heavily on the acceleration caused by gravity.

The acceleration due to gravity on this planet can be determined by using the equation:

a = (2*v)/t,

where a is the acceleration, v is the initial velocity, and t is the time.

Substituting in the values given, we get:

a = (2*6.8)/18.8 = 0.7 m/[tex]s^{2}[/tex]

This is the gravitational acceleration on this planet. This equation defines the acceleration of a straight-line travelling object under the effect of gravity, hence it may be used to calculate the acceleration due to gravity on this planet.

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The dependence of the rate constant on temperature is expressed by arrhenius equation.

The Arrhenius equation can quantitatively explain the temperature dependency of the rate of a chemical process.

[tex]k= Ae^{-Ea/RT}[/tex]

where, k is the rate constant, and T denotes the temperature. A represents the Arrhenius factor, also known as the frequency factor or pre-exponential factor. Ea is the activation energy in joules/mole, and R is the gas constant.

The ratio [tex]e^{-Ea/RT}[/tex] represents the proportion of molecules with kinetic energy greater than Ea. The Arrhenius equation has revealed that a rise in temperature or a fall in activation energy leads to an increase in reaction rate and an exponential rise in rate constant.

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Answer:

100 m

Explanation:

Δx = v₀t + 1/2at²

Δx = 0 + 1/2(2 m/s²)(10 s)² = 100 m