1. You drop a ball from the edge of a cliff. It lands 4 seconds later: a) Make a table showing the ball's speed each second for 4 seconds.
b) What is the ball's average speed for the whole 4 seconds?
c) What distance does the ball fall during the 4 seconds?

Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.

Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2

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.