What happens when an object is dropped? a. it decelerates at a rate of 9.8 m/s/s. b. it travels 9.8 meters before stopping. c. it accelerates at a rate of 9.8 m/s/s. d. it falls at a constant rate of 9.8m/s/s.

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

Ihave this 50 question test the layer of earth's atmosphere where atoms and molecules escape into space is referred to as the a) exosphere b) ionosphere. c) mesosphere d) thermosphere