starting from the satellite on the earth's surface at the equator, what is the minimum energy input necessary to place this satellite in orbit?

When thermal energy is applied to a substance, the particles in the substance start to vibrate more rapidly, and the average kinetic energy of the particles increases.

As a result, the temperature of the substance increases. The amount of thermal energy required to increase the temperature of the substance by a certain amount is called the specific heat capacity of the substance.

The way the substance responds to the applied thermal energy also depends on its physical properties, such as its mass, density, and thermal conductivity. For example, a substance with a high thermal conductivity will transfer heat more rapidly to its surroundings, while a substance with a low thermal conductivity will retain heat more effectively.

If the applied thermal energy is sufficient, the substance may undergo a phase change, such as melting or boiling, as the increased kinetic energy overcomes the intermolecular forces holding the particles together.  

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Hot gas typically produces an emission line spectrum. This means that when the gas is excited, it emits light at specific wavelengths, creating bright lines in the spectrum.

Hot gas produces an emission line spectrum. An emission line spectrum is characterized by bright lines against a dark background. This occurs because hot gas contains excited atoms that release energy in the form of photons, which correspond to specific wavelengths of light. These wavelengths often fall in the ultraviolet and visible regions of the electromagnetic spectrum.

In contrast, an absorption line spectrum occurs when light passes through a cooler gas, which absorbs specific wavelengths, creating dark lines against a continuous background. Continuous spectra are typically produced by hot, dense objects like stars or incandescent light bulbs. Infrared and ultraviolet are regions of the electromagnetic spectrum that can contain both emission and absorption lines, depending on the specific situation.

However, if the hot gas is viewed in front of a background source of light, it may also produce absorption lines in the spectrum. These absorption lines are caused by the gas absorbing specific wavelengths of light, leaving dark lines in the spectrum where those wavelengths are missing. Additionally, if the hot gas is emitting thermal radiation, it may produce a continuous spectrum that spans from infrared to ultraviolet wavelengths.

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The force exerted on the charge 10q has a magnitude that is greater than F.

The force between two charged particles is given by Coulomb's law:

F = k * q1 * q2 / r^2

If we consider the system of two charges, q and 10q, and assume that they are at the same distance from the test charge:

[tex]F = k * q * qtest / r^2[/tex]

where qtest is the charge of the test charge.

Similarly, the force on the test charge due to 10q is given by:

F' = k * (10q) * qtest / r^2

Dividing second equation by the first, we get:

F' / F =[tex](10q * qtest) / (q * qtest)[/tex] = 10

So the force exerted on the charge 10q has a magnitude that is greater than the force exerted on the charge q by a factor of 10.

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Pulsed lasers are used in specific applications where short bursts of laser light are needed, such as in laser ranging, lidar, or certain medical procedures.

What is Wavelength?

Wavelength is a term used in physics to describe the distance between two consecutive points of a wave that are in phase, or the distance over which a wave completes one cycle. It is commonly denoted by the Greek letter lambda (λ) and is usually measured in units such as meters (m), nanometers (nm), or angstroms (Å).

Green laser pointers typically use a type of laser known as a diode-pumped solid-state (DPSS) laser to generate laser light at a wavelength of 532 nm, which corresponds to green light in the visible spectrum. DPSS lasers are a type of laser that uses a solid-state crystal or material as the gain medium, which is pumped by a diode laser to achieve laser emission.

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At 6°C and 3 atm, 3 L of oxygen gas has a total translational kinetic energy of 4.32 10³ J.

A chemical entity's centre of mass moves with energy Ek=12mv2, where m is the chemical entity's mass (molecule, atom, or ion) and v is the centre of mass's velocity.

KE = (3/2) × N × k × T

PV = nRT

n = PV/RT

n = (3 atm) * (3 L) / [(0.08206 L·atm/mol·K) * (279 K)]

n = 0.321 mol

Since each molecule of oxygen has 2 atoms, the total number of oxygen molecules is:

N = 2 * (6.022 × 10²³) * 0.321

N = 3.87 × 10²⁴ molecules

Now we can calculate the kinetic energy:

KE = (3/2) * (3.87 × 10²⁴) * (1.38 × 10²³ J/K) * (279 K)

KE = 4.32 × 10³ J

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Answer:

A true

Explanation:

because it is talking about drugs and alcohol

The geocentric model of the universe that was widely accepted in scientific and religious circles until the 16th century was that of Ptolemy, also known as the Ptolemaic system.

The geocentric model of the universe, widely accepted in scientific and religious circles until the 16th century, was based on the idea that Earth was at the center of the cosmos.

This model, also known as the Ptolemaic system, was developed by the ancient Greek astronomer Claudius Ptolemy in the 2nd century AD. According to this model, all celestial objects, including the Sun, Moon, and stars, revolved around the Earth in circular or epicyclical paths.

The geocentric model was dominant for over a thousand years due to its alignment with religious beliefs and its ability to explain astronomical observations.

However, the 16th-century work of Nicolaus Copernicus and later astronomers led to the acceptance of the heliocentric model, which placed the Sun at the center of the solar system and was a more accurate representation of the cosmos.

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Answer:

Electrical - electric forces between atoms are responsible for reactions between the atoms

Nuclear forces are not directly involved when 2 atoms of Oxygen combine to form a molecule of O2 or an atom of Sodium combines with an atom of Chlorine to form NaCL (table salt)

linear kinetic energy, the moment of inertia and angular velocity can be used to express the kinetic energy of a rotating object.

Thus, The translational kinetic energy of the centre of mass and the rotational kinetic energy about the centre of mass add up to the total kinetic energy of an extended object. The form of the rotational kinetic energy for a particular fixed axis of rotation is

The work-energy principle can be used to parallel build the equations for rotational and linear kinetic energy. Think about the comparison between a constant force applied to a mass m starting at rest and a constant torque applied to a flywheel with moment of inertia I.

The average velocity is half the final velocity and Newton's second law is equal to the final velocity divided by the time, the work done on the block results in kinetic energy that is equal to the work done.

Thus, linear kinetic energy, the moment of inertia and angular velocity can be used to express the kinetic energy of a rotating object.

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part a.

An element is described as a pure substance that is composed of only one type of atom. Each element is characterized by a unique atomic number, which corresponds to the number of protons in the nucleus of its atoms.

part b.

a) Mercury -  breaking down mercury would yield only mercury atoms.

b) Sodium chloride -  Breaking down sodium chloride would yield sodium and chlorine atoms in their respective ratios.

c) Water -Breaking down water would yield hydrogen and oxygen atoms in their respective ratios.

d) Carbon dioxide : Breaking down carbon dioxide would yield carbon and oxygen atoms in their respective ratios.

e) Oxygen - breaking oxygen down would yield only oxygen atoms.

Some facts about elements includes;

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The term used to describe the strength-based cluster of personality dispositions that is hypothesized to predict cultural adjustment and quality of life outcomes in culturally heterogeneous societies is "Cultural Intelligence" (CQ), as defined by Ponterotto, Mendelowitz, and Collabolletta in 2008.

Cultural Intelligence (CQ) refers to the ability of an individual to understand and appreciate cultural differences and to function effectively in culturally diverse environments. It is based on four key components: cognitive, physical, emotional, and behavioral.

Individuals with high CQ are able to adapt and interact effectively with people from different cultural backgrounds, which is becoming increasingly important in today's globalized world. CQ has been linked to various positive outcomes, such as better job performance, more effective leadership, and improved quality of life in diverse settings.

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In most applications, the braking torque of the friction brakes should be adequate enough to bring the vehicle to a complete stop within a reasonable distance.

This is important for safety reasons and to prevent accidents.

The braking torque required depends on several factors, including the weight of the vehicle, the speed at which it is traveling, and the road conditions.

To calculate the required braking torque, one can use the equation:

Braking torque = vehicle weight x deceleration x radius of the brake rotor

Deceleration is the rate at which the vehicle slows down, and the radius of the brake rotor is the distance from the center of the rotor to the point where the brake pads make contact.

Once the required braking torque is calculated, the brake system can be designed accordingly.

This may involve selecting the appropriate brake pad material, ensuring proper brake cooling, and selecting the right brake rotor size and design.

It is important to note that the braking torque should not be excessive, as this can cause premature wear of the brake components and reduce their effectiveness over time.

Additionally, excessive braking torque can lead to wheel lock-up and skidding, which can be dangerous.

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It is not recommended to keep the AC running while the engine is off, as this can drain the car battery and may lead to mechanical issues in the long run. It is better to turn off the AC and open the windows or step out of the car to cool off while waiting for your husband.

Idling the engine for extended periods of time can also waste gas and contribute to air pollution. When you stop your car's engine, the air conditioning (AC) system will also stop working, as it requires the engine to be running to function properly. To save gas and keep cool while waiting for your husband, you may consider:

1. Turn off your car's engine to save gas.
2. Open the windows slightly to allow for airflow.
3. Use a portable battery-operated fan to keep yourself cool.
4. Park your car in a shaded area, if possible, to reduce heat buildup inside the vehicle.
5. Wear light, breathable clothing to stay comfortable in warmer temperatures.

Remember that running the AC without the engine is not possible, so it's essential to find alternative ways to stay cool while conserving fuel.

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The wavelength of an electron with a mass of 9.11 x 10^-28 g that has been accelerated to a speed of 2.1 x 10^7 m/s is 1.23 x 10^-10 meters.

To find the wavelength of an electron that has been accelerated to a speed of 2.1 x 10^7 m/s, we can use the de Broglie equation:

wavelength = h / mv

where h is Planck's constant (6.626 x 10^-34 J*s), m is the mass of the electron (9.11 x 10^-28 g), and v is the velocity of the electron (2.1 x 10^7 m/s).

First, we need to convert the mass of the electron from grams to kilograms:

m = 9.11 x 10^-28 g = 9.11 x 10^-31 kg

Now we can plug in the values into the equation:

wavelength = h / mv
wavelength = 6.626 x 10^-34 J*s / (9.11 x 10^-31 kg)(2.1 x 10^7 m/s)
wavelength = 1.23 x 10^-10 m

Therefore, the wavelength of an electron with a mass of 9.11 x 10^-28 g that has been accelerated to a speed of 2.1 x 10^7 m/s is 1.23 x 10^-10 meters.

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The expression for x1(t) , the position of mass i as a function of time, is x1(t) = x1_0 + v1_0 * t + 0.5 * a1 * t²

To find an expression for x1(t), the position of mass 1 as a function of time, we need to consider the following terms:

1. Initial position (x1_0): The position of mass 1 at time t=0.
2. Initial velocity (v1_0): The velocity of mass 1 at time t=0.
3. Acceleration (a1): The constant acceleration acting on mass 1, if applicable.

Now, we can use the general equation for the position of an object as a function of time:

x1(t) = x1_0 + v1_0 * t + 0.5 * a1 * t²

Where x1(t) is the position of mass 1 at time t, x1_0 is the initial position, v1_0 is the initial velocity, a1 is the acceleration, and t is the time in seconds.

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The magnitude of the uniform electric field which has the same energy density as a 0.23 t magnetic field is 86.68 V/m.

To find the magnitude of the uniform electric field with the same energy density as a 0.23 t magnetic field, we can use the equation for energy density:

Energy density (in J/m³) = 0.5 × μ × B²

where μ is the permeability of free space (4π × 10⁻⁷ Tm/A) and B is the magnetic field strength in teslas.

We know the energy density of the magnetic field, so we can rearrange the equation to solve for the electric field strength:

Electric field strength (in V/m) = √(2 * energy density / ε)

where ε is the permittivity of free space (8.85 x 10⁻¹² F/m).

Substituting the values given, we get:

Energy density = 0.5 × μ × B²
= 0.5 × 4π × 10⁻⁷ T*m/A * (0.23 T)²
= 3.325 × 10⁻⁸ J/m³

Electric field strength = √(2 × energy density / ε)
= √(2 × 3.325 × 10⁻⁸ J/m³ / 8.85 × 10⁻¹² F/m)
= 86.68 V/m

Therefore, the magnitude of the uniform electric field with the same energy density as a 0.23 t magnetic field is 86.68 V/m.

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Answer:

Total Voltage V=36*2Ω = 72Ω

We can use the formula V=IR

V=voltage

I=current

R=resistance

V=IR

I= 52/72

I=13/18

The longest sound wavelength we can hear is 16.6 m while  the shortest sound wavelength we can hear is 0.0166 m.

We can use the formula for the speed of sound to find the longest and shortest sound wavelengths humans can hear:

speed of sound = frequency × wavelength

Let's first solve for the longest wavelength (a):

a. Longest wavelength = speed of sound / lowest frequency
Longest wavelength = 332 m/s / 20 Hz
Longest wavelength = 16.6 m

Now, let's solve for the shortest wavelength (b):

b. Shortest wavelength = speed of sound / highest frequency
Shortest wavelength = 332 m/s / 20,000 Hz
Shortest wavelength = 0.0166 m (or 1.66 cm)

So, the longest sound wavelength humans can hear is 16.6 meters and the shortest sound wavelength we can hear is 0.0166 meters (1.66 centimeters).

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The scale that allows a respondent to express relative magnitude between the answers to a question and arranges responses in a hierarchical pattern, but does not allow researchers to determine absolute difference between responses, is called an ordinal scale.

An ordinal scale is used in research to measure the rank order of items or attributes, where the differences between them cannot be precisely quantified. The responses are ordered based on their perceived magnitude, but the actual distance between them is unknown.

Ordinal scales can be analyzed using non-parametric statistical tests such as the chi-square test or the Mann-Whitney U test, which do not assume that the data is normally distributed or that the intervals between responses are equal.

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The complete question is:

A scale that allows a respondent to express relative magnitude between the answers to a question and arranges responses in a hierarchical pattern, but does not allow researchers to determine absolute difference between responses, is called a(n) ____________

The electromagnetic waves being used by the microwave oven have a wavelength of approximately 0.08 meters.

Based on the information given, we can estimate the wavelength of the electromagnetic waves being used by the microwave oven using the distance between two consecutive unmelted cheese strips.

The distance between two consecutive unmelted cheese strips is about 4cm, which represents half a wavelength, since the cheese strips correspond to regions where the microwaves are reflecting off the metal walls of the oven. Therefore, the full wavelength of the electromagnetic waves being used by the oven is approximately 2 times 4cm, or 8cm.

Converting this to meters, we get a wavelength of 0.08 meters (since there are 100 centimeters in a meter). Therefore, the electromagnetic waves being used by the microwave oven have a wavelength of approximately 0.08 meters.

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The frequency of the horn of a car moving towards you would increase, while the frequency of a car moving away from you would decrease due to the Doppler effect.

The frequency of the sound waves an automobile makes will rise as it approaches you. This is due to the sound waves compression as the automobile draws closer to you, which causes them to have a shorter wavelength and a higher frequency. The Doppler effect is the name for this rise in frequency.

On the other hand, when an automobile pulls away from you, the sound waves' frequency will drop because they stretch, leading to a longer wavelength and a lower frequency. As a result, if all vehicles produce sound at the same frequency, you would hear a frequency rise for a vehicle travelling in your direction and a frequency drop for a vehicle driving away from you.

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If the car is moving towards you, the frequency of the horn will increase,moving away from you, the frequency will decrease

If the horns of all cars emitted sound at the same pitch or frequency, the frequency of the horn of a car moving toward you would appear to increase, as the sound waves are compressed and the wavelength is shortened due to the Doppler effect. Conversely, the frequency of the horn of a car moving away from you would appear to decrease, as the sound waves are stretched and the wavelength is lengthened due to the Doppler effect. This is because the observer perceives a higher frequency when the source is approaching and a lower frequency when the source is moving away.

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The time taken is twice the time taken to decrease from the initial voltage to one-half initial voltage.

The amount of time it takes for a voltage to decrease from one level to another depends on the characteristics of the system generating the voltage.

Assuming that the voltage is decreasing exponentially over time, the time it takes for a voltage to decrease from one level to another can be calculated using the formula:

[tex]t = -(ln(Vf/Vi))/λ[/tex]

where t is the time taken, Vi is the initial voltage, Vf is the final voltage, and λ is the decay constant of the system generating the voltage.

If the voltage decreases from one-half its initial voltage to one-fourth its initial voltage, then [tex]Vi = 1, Vf = 1/4[/tex], and the voltage has decreased by a factor of 2.

Assuming that the decay is exponential, the time it takes to decrease by a factor of 2 is:

[tex]t = -(ln(1/2))/λ[/tex]

We can simplify this expression using the fact that [tex]ln(1/2) = -ln(2)[/tex], which gives:

[tex]t = ln(2)/λ[/tex]

Similarly, the time it takes to decrease by a factor of 4 is:

[tex]t = -(ln(1/4))/λ = ln(4)/λ = 2ln(2)/λ[/tex]

So, the ratio of the time taken to decrease from one-half initial voltage to one-fourth initial voltage is:

[tex]t(1/4) / t(1/2) = (2ln(2)/λ) / (ln(2)/λ) = 2[/tex]

Therefore, the time taken to decrease from one-half initial voltage to one-fourth initial voltage is twice the time taken to decrease from the initial voltage to one-half initial voltage.

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Newton’s second law of motion states that the force F acting on an object of mass m produces an acceleration a in the object, and is given by, F = ma. The law s invariant under Galilean transformation.

The Galilean transformation is a set of equations that describe the relationship between two reference frames that are in relative motion with constant velocity. It has no effect on the form of Newton’s second law because it only involves a change of coordinates and time, which do not affect the physical laws.

To see this, consider two reference frames S and S', where S' moves with constant velocity v with respect to S. Let an object of mass m be at rest in S, and let F be the net force acting on it in S. According to Newton’s second law in S, we have:

F = ma

Now, let us apply the Galilean transformation to the equation. The position of the object in S' is given by:

x' = x - vt

where x is the position of the object in S, and t is time. Taking the derivative of x' with respect to t, we get:

v' = dx'/dt

= dx/dt - v

= v - v

= 0

This means that the velocity of the object is the same in both reference frames. Similarly, the acceleration is also the same in both reference frames, since it is the derivative of velocity,

a' = dv'/dt = da/dt = a

Therefore, we can write Newton’s second law in S' as,

F' = ma'

where F' is the net force acting on the object in S'. Substituting a' = a, we get:

F' = ma

which is the same form as in S. Thus, we see that the form of Newton’s second law is invariant under the Galilean transformation.

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The ultimate fate of an isolated pulsar is determined by a combination of various physical processes that act on it over time.

The ultimate fate of an isolated pulsar depends on various factors such as its mass, rotation speed, and magnetic field strength. If the pulsar has a low mass, it may eventually spin faster and become a millisecond pulsar.

However, if it has a high mass, it may explode as a supernova, releasing huge amounts of energy and leaving behind a neutron star or a black hole.

In some cases, if the magnetic field weakens and the pulsar slows down, it may become invisible. As the neutron degeneracy pressure overwhelms gravity, the pulsar may eventually transform into a white dwarf.

Alternatively, the neutron degeneracy pressure may eventually overwhelm gravity, and the pulsar will slowly evaporate.

Overall, the ultimate fate of an isolated pulsar is determined by a combination of various physical processes that act on it over time.

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The only part of the work that is done on the outside of the garment is the basting or pinning of the zipper tape to the fabric.

The rest of the work is done on the inside of the garment. The zipper teeth are inserted between the layers of the fabric and the seam is sewn in place. The seam is then pressed open and the zipper is opened up to expose the teeth.

The zipper tape is then folded back and stitched in place, creating a clean finish on the inside of the garment. The final step is to topstitch the zipper on the outside of the garment, which reinforces the zipper and adds a decorative touch.

Overall, the centered zipper is a popular and versatile choice for many types of garments and can be easily customized to suit individual preferences.

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The gravitational force on the rock is 78.4 Newtons.

At the given instant, the 8-kg rock experiences a gravitational force which can be calculated using the formula:

F_gravity = m * g

where m is the mass of the rock (8 kg) and g is the acceleration due to gravity (approximately 9.8 m/s²).

F_gravity = 8 kg * 9.8 m/s² = 78.4 N

So, the gravitational force on the rock is 78.4 Newtons.his net force causes the rock to accelerate downwards.

The concept of gravitational force is an important one in physics, as it plays a significant role in many natural phenomena. The force of gravity is responsible for the motion of celestial bodies, and it is also a key factor in determining the weight of objects on earth.

Understanding the principles of gravitational force can help us understand the behavior of objects in motion and can also help us develop technologies that are based on these principles.

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The speed of the particle at x = 8.0 m is 9.30 m/s.

We can solve this problem using the work-energy theorem, which states that the net work done on an object is equal to its change in kinetic energy,

W_net = ΔK

Where W_net is the net work done by all forces acting on the object, and ΔK is the change in kinetic energy of the object.

In this case, the only force acting on the particle is F(x) = 3x N, which is a conservative force, so the net work done by this force can be expressed as the negative gradient of a potential energy function:

W_net = -ΔU

Where ΔU is the change in the potential energy of the particle.

Since F(x) = -dU/dx, we can integrate both sides with respect to x to find the potential energy function:

[tex]U(x) = -\int F(x) dx\\= -\int 3x dx[/tex]

= -1.5x² + C

where C is an arbitrary constant of integration. To determine the value of C, we can use the fact that U(x) is defined up to an arbitrary constant, so we can set U(3) = 0:

U(3) = -1.5(3)² + C = 0

C = 13.5

So the potential energy function is,

U(x) = -1.5x² + 13.5

Now we can use the conservation of energy to find the velocity of the particle at x = 8.0 m. At x = 3.0 m, the kinetic energy of the particle is,

K(3) = (1/2)mv² = (1/2)(2.6 kg)(7.0 m/s)² = 67.9 J

The potential energy at x = 3.0 m is:

U(3) = -1.5(3)² + 13.5 = 0 J

So the total energy of the particle at x = 3.0 m is:

E(3) = K(3) + U(3) = 67.9 J

At x = 8.0 m, the potential energy is:

U(8) = -1.5(8)² + 13.5 = -94.5 J

Therefore, the kinetic energy of the particle at x = 8.0 m is:

K(8) = E(3) - ΔU = 67.9 J - (-94.5 J) = 162.4 J

The velocity of the particle at x = 8.0 m can be found using the kinetic energy formula:

K = (1/2)mv²

v = √(2K/m) = √(2(162.4 J)/(2.6 kg)) = 9.30 m/s

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The differences between ambient sounds, sound effects, and Foley sounds.

Ambient sounds, also known as background sounds or atmospheric sounds, are the continuous, subtle noises that help create a sense of atmosphere or location in a scene. They differ from sound effects in that sound effects are distinct, purposeful sounds added to emphasize specific actions or events in a scene.

Foley sounds, on the other hand, are a type of sound effect created manually by a Foley artist to match and enhance the actions happening on-screen. They are different from regular sound effects because they are typically recorded live in a studio using various objects and materials to create realistic, synchronized sounds for actions such as footsteps, clothing rustles, and object handling.

In summary:

1. Ambient sounds create a sense of atmosphere or location and are continuous and subtle.
2. Sound effects are distinct, purposeful sounds added to emphasize specific actions or events.
3. Foley sounds are a type of sound effect created manually by a Foley artist to match on-screen actions.

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155-newton box going up a ramp. The gravitational potential energy in the universe totals 279J, which is what causes the box to move from point A to point B when force F is applied.

The formula for gravitational force is P.E. = mgh, whereby g is the force caused by gravity (9.8 m/s2 at the earth's surface) and h is the elevation in metres. The units for gravitational potential energy are kg m2/s2, which are the same as those for kinetic energy.

The amount of gravitational potential energy an object has depends on how high it is above the surface whenever the height is the smallest. Point B in the given diagram is the lowest point and is closest to the Earth's surface vertically.

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