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Energy Questions and Answers (Q&A)

B is the answer to this question. The answer is based on the shown diagram. There are some people who may get confused with what a bedrock actually is. This is the type of solid rock that is usually found beneath the soil. There are some areas in the world wherein the bedrock may be more visible.

The granite bedrock is formed because of the cooling of magma. Once it solidifies, it becomes bedrock. This is known to extend far beyond the surface of the earth so it will be hard to actually measure its length unless there are actual numbers that are given that can be used for the computation.

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The correct answer to this question is C, 3/5 m/s.This question is one which would be used in physics and relates to kinetic energy. Mass has an affect on accelaration, which affects speed indirectly. It is used to determine how quickly an object accelerates under the force of action.

Mass is also used to determine how strong a force is to accelerate an object at a rate. The equation for measuring a constant mass is F = ma. This equation is apart of Newtown's Law and it is the second law. F stands for force, M for mass, and a is for acceleration.

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One of the best examples of an endothermic reaction is the chemical process of dissolving table salt in water. If you pour salt into a bowl or container of water, the salt will automatically dissolve on its own. This chemical process will lower the temperature of the water in the container, consuming some of the energy from the water. This process is called endothermic reaction and it is spontaneous in normal pressure and temperature.

An endothermic reaction happens when more energy is required to break or dissolve the bonds in the reactants than what is released when a product is formed by its new bond. To simplify, the endothermic reaction takes a certain portion of energy in order to work.

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S. Barnes

Driving down to Knowledge town

Enthalpy is the heat relocation taking place in constant pressure, while entropy gives an idea of the randomness of a system. Enthalpy and entropy are two terms verifying the reactions taking place in a system. Enthalpy and entropy are thermodynamic state functions.

When a response takes place, it may absorb or evolve heat. Carrying out the reaction at continuous pressure is called enthalpy. Enthalpy is the heat transfer which takes place in a constant pressure. Enthalpy is the first law of thermodynamics; however, entropy is the second law of thermodynamics.

Enthalpy can be employed to measure the change in energy of the system after the reaction. We can use enthalpy to measure the degree of disorder of the system after the reaction.

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B is the answer to this question. You need to check the given and see what type of work is being done. Based on the example, the cart is being pulled along the incline. You need to compare the work being done with the potential energy of the cart. The work done by the student is equal to the energy change.

The formula for this is w=delta pe = mg(delta h). The data that you need to place are the following: (3.00 kg)(9.8 m/s/s)(0.45 m). Based on the given, the answer will be 13.2 J. Another formula that you can use to compute the answer is w = fdcos(theta). You will get the same results so you can just pick the formula that you can understand better.

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A glass of water that has been sitting in the sun

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The correct answer to this question is B, 45%. This question would be asked on physics tests. The focus of this question is energy, work, and simple machines. In physics, energy is the capacity of doing work. There are various forms of energy including kinetic, thermal, and nuclear energy. Work is the action force completes and it moves energy.

Simple machines do work by using only one movement. Examples of simple machines include screws, wheels and axles, and wedges. These simple machines don't change the amount of work needed to do task, but they do change how work is done.

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The law of conservation of mass-energy, otherwise known as mass-energy equivalence states that E=mc², where E is energy, m is mass and c is the speed of light constant. In Einstein’s theory of relativity, he explained that mass and energy are the convertible and equivalent to one another.

The formula E=mc² explains that even a small amount of mass can produce a tremendous amount of concentrated energy. For example, a marble weighing 20 grams can produce a huge amount of energy equivalent to a 500 kiloton hydrogen bomb. However, this amount of energy would be difficult to release and can only be done through the process of matter-antimatter annihilation.

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Wyatt Williams

The answer to this is letter C. Sound energy is created when an object vibrates. The sound waves may cause vibrations everywhere. For example, if there is a sound that is made underwater, it will not be surprising if the waves would start to show some pressure.

There are times when the sound would take some time before reaching a certain location. It would depend on the things that it will pass through. The vibrations that are caused by sound can be considered as the reason why the sound is considered to be a form of energy. There are other forms of energy that can be found no matter where you are.

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The correct answer to this question is A, λ. This symbol is the Greek letter lambda. The distance between two points of waves is a wavelength. The wave carries energy. When describing wavelengths, there are two main examples. One is an ocean.

Water helps create waves in the ocean. Another example is a slinky toy. The coil in the toy helps produce waves. When wavelengths are being measured, they are measured in either centimeters or nanometers. Light also has wavelenths and each wavelength in light has a different color. This type of question would likely be found on a physics test.

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