A 2.4kg toy fall from 2 m to 1m what is the change in GPE?

Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.

Compare the patterns of the two waves shown in the image. which statement is true about these waves?

Which of the following are forms of phase changes a. freezing b. condensation c. heating d. exchanging