A woman who weighs 50kg is accelerating up in an elevator at 2m/s^2. With what force is the elevator pushing on her?

The necleus of an atom is made up of what subatomic particles?

During which interval are the persons represented by the graph not moving? a) 0 to 0.5 hrs b) 1.5 to 2 hrs c) 2 to 2.5 hrs d) 4.5 to 5 hrs

How do we measure or think of speed in the united states?