Calculate the work needed for a 65 kg person to climb through 4.0 m
on the surface of (a) the earth and (b) the moon

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied. true or false

Positrons are spontaneously emitted from the nuclei of

To a of 4 x hz is 1. 0. mm nm nm