If a planet is 36 Astronomical Units from the sun, what is its period of revolution, according to Kepler’s 3rd Law? A. 17 years
B. 118 years
C. 8 years
D. 216 years

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.