A 0.180 kg ball falls 2.5 m. a. How much work does the force of gravity do on the ball?
b. How does kinetic energy change over this interval?
c. How fast will the ball be moving after falling the 2.5 m?

(Please show your work) (DO NOT ANSWER IF YOU DON'T KNOW!!!)

What is a costume plot? why is it important to a film or theater production?

Ethanol has a heat of vaporization of 38.56 kj/mol and a normal boiling point of 78.4 c. what is the vapor pressure of ethanol at 14 c?

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.