Select the correct answer.
which of the following is an example of kinetic energy?
on a boy resting on a park bench
ob a book sitting on a shelf
oc a rubber band stretched as far as it can go
a swing moving back and forth
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An asteroid is discovered in a nearly circular orbit around the sun, with an orbital radius that is 2.47 times earth's. what is the asteroid's orbital period, its "year," in terms of earth years?

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.