Bob lift a person weighing 75 N. If he lifts it 1.5 m off the floor, what work has he done?

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface

A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if it’s pressure is changed to 8.4 kpa while its temperature remains constant.

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer