Imagine that a small boy and his much larger father are enjoying a winter morning, sliding along the ice on a nearby playground. make a hypothesis: who do you think would be slowed down more by frictional forces on the ice, the small child or the large adult?

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?

Frequency of electromagnetic waves that a radio station is assigned. what do you call this type of wave?