After a skydiver reaches terminal velocity,

a. the force of gravity no longer performs work on the skydiver.
b. work performed by the force of gravity is converted into gravitational potential energy.
c. gravitational potential energy is no longer available to the system of the skydiver plus the Earth.
d. gravitational potential energy is converted into thermal energy.
e. thermal energy is converted into gravitational potential energy.


d

Physics & Space Science

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Contrast this impression with the Cosmological Principle and explain why a simple-minded interpretation of the Hubble expansion is incorrect.

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Indicate whether the statement is true or false

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