Lifting a mass (m ) from the ground to height ( h ) requires a force equals to
(1 Point)
A. mass x gravitational acceleration
B. mass x height
C. mass x work
D. mass

This question is worth 54 points ! rock falls from a ledge to the ground what energy conversion occurs during this process a potential to kinetic b kinetic to potential c thermal to mechanical d chemical to mechanical

While you are driving in the lane next to the curb on a multi-lane road the car on your left suddenly moves toward you lane. they are about toy crash into your front fender. you

How many astronauts have walked on the moon?