A rock climber and her gear have mass 80 kg. She climbs up a rock face 1 of height 62 m above the ground. How much work did the rock climber do
against gravity?

An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

How many dots must be added to the symbol to properly represent a standard nitrogen ion? a) 1 b) 3 c) 5 d) 8