A 1,000 kg elevator is rising and its speed is increasing at 3.0 m/s^2. What is the tension of the elevator cable pulling the elevator upwards?

The functioning of an electron transport chain is analogous to a) a slinky toy going down a flight of stairs. b) a canoe going over a waterfall. c) a person climbing a flight of stairs one step at a time. d) a person leaping from the top to the bottom of a flight of stairs in one jump.

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

What is the single most important equation in all of physics?