Connor lifts a 1,500 N barbell above his head from the floor to a height of 2m. He holds the barbell there for 5 sec.
a. How much work does he do lifting the barbell?
B. How much work does he do during the 5 second interval?

In an experiment, how can i change human errors? be specific.

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.

The california mussel (mytilus californianus) attaches itself to a rock or other solid surface with a bundle of filaments known as the byssus. imagine that 15.0 j of work is done to stretch the distal end of the byssus. it releases 10.8 j of thermal energy as it relaxes. what is the resilience of the distal end of the byssus?