List the planets of the solar system, from closest to farthest from the sun.

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.