The normal force of your desk on the floor is 98 N upward. What is the mass of your desk? For units write: N (yes has to be a capital), kg, or m/s/s​

Which statement correctly describes the relationship between frequency and wavelength?

Asap and show ! a 14 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.

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