HURRY IM TIMED Which two elements make up water?
oxygen and phosphorus
oxygen and hydrogen
hydrogen and sulfur
hydrogen and phosphorus

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

Aspring has a natural length of 8 m. if a 12-n force is required to keep it stretched to a length of 10 m, how much work w is required to stretch it from 8 m to 16 m? (round your answer to two decimal places.)

What causes the formation of ocean currents?