Acampus bird spots a member of an opposing football team in an amusement park. the football player is on a ride where he goes around at angular velocity w at distance r from the center. the bird flies in a horizontal circle above him. will a dropping the bird releases while flying directly above the person's head hit him? ignore air resistance.

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.

Which type of reaction is shown in this energy diagram ?

Which planets are visible without a telescope