starting from rest, a marble first rolls down a steeper hill, then down a less steep hill of the same height. for which is it going faster at the bottom?

For which pair of objects would adding the same a

As the distance from a magnet increases, what happens to the magnet force?

To solve a problem using the equation for kepler ‘s third law , enrico must convert the average distance of mars from the sun from meters into astronomical units . how should he make the conversion ?