The table below gives the period t and orbit radius r for the motions of four satellites orbiting a dense, heavy
asteroid.
(a) these data can be fitted by the formula t = cr^n.
find c and n. (b) a fifth satellite is discovered to have a period
of 6.20 y. find the radius for the orbit of this satellite, which
fits the same formula.
period i, y 0.44 1.61 3.88 7.89
radius r. gm 0.088 0.208 0.374 0.600

Energy is the ability to do work which measures what

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.