As you contract your muscle, which of the following events is occurring? all the kinetic energy is converted to potential energy. all the potential energy is converted to kinetic energy. energy is being created. heat is released.

All the potential energy is converted to kinetic energy

Explanation:

As you contract your muscle, the energy stored within the fibers and cells of the static, relaxed muscle (this is potential energy) is converted into motion when the fibers are contacted. This motion corresponds to a kinetic energy.

The last two options can be discarded as follows:

-Energy can not be created nor destroyed. It can only be transformed.

-Heat is generated in most of the biochemical processes of the body. However, the heat release is not instantaneous and there are several other complex factors and phenomenae to consider. So, in accordance to the scope of this question, there is energy conservation and therefore all the energy is transformed from potential to kinetic, with no consideration of energy loss to the surroundings.

if a star is moving toward earth, its light waves appear to be squeezed together. hope it

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

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