(11)A bullet with a mass of 5.00 10-3 kg is loaded into a gun. The loaded gun has a mass of 0.52 kg. The bullet is fired, causing the empty gun to recoil at a speed of 2.1 m/s. What is the speed of the bullet?
(12)A Ferris wheel rotates with an initial angular speed of 0.50 rad/s and...