Calculate the speed of raindrops hitting your face when they fall vertically at 19 m/s while you’re running horizontally at 15 m/s.

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?

The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.

Thermal radiation gets its name because