A box of mass m is held at rest on a frictionless surface with force F up the ramp. The ramp has an angle θ.What is the magnitude of the normal force?

What makes thermal imaging cameras useful? they can detect differences in color. they can detect differences in wave speeds. they can detect differences in temperature. they can detect mechanical waves.

Erosion of the beach is normally a slow process. however, in certain situations, large chunks of shore may wash out to sea. what could cause this to happen?

If element x has 99 protons how many electrons does it have