The change in __________ is the amount of energy in a system that is available to do work.

1 answer:

6 0

The answer is free energy.
In fact, in thermodynamics, the free energy of a system is defined as the energy that can be converted to do work. Helmholtz definition of free energy, for instance, is:
$A=U-TS$
where U is the internal energy, T the temperature and S is the entropy

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Answer:

It is easier to stop the bicycle moving at a lower velocity because it will require a smaller force to stop it when compared to a bicycle with a higher velocity that needs a bigger force.

Explanation:

The question above is related to "Newton's Law of Motion." According to the Third Law of Motion, whenever an object exerts a force on another object (action force), an equal force is exerted against it. This force is of the same magnitude but opposite direction.

When it comes to moving bicycles, the force that stops their movement is called "friction." Applying the law of motion, the higher the speed, the higher the force that is needed to stop it while the lower the speed, the lower the force that is needed to stop it.

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Answer : The density of rock reported should be, 3.1 g/mL

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Mass of rock = 18.3 g