A steel ball with mass 1 kg strikes an initially stationary plate of mass 2 kg with an initial velocity 24 m/s at an angle 60◦. If the plate is constrained to move vertically, and the coefficient of restitution for the impact is e = 0.8, compute the magnitude of velocity v2 and the direction θ2 with which the ball rebounds off the plate immediately after the impact.

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

Ms.hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?