Which two statements best describe force

Groups of organs that work together to complete a process in the body are called: a. cells b. tissues c. nerves d. systems

How do you tell if someone actually cares about you? and just say they do?

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules