A 12.4 kg ball rolls across the floor and hits the wall with a force of 4.3 Newtons. What is the acceleration of the ball after the collision? *

What is the angular momentum of the bar about the axle?

More solar radiation is absorbed by earth’s surface than by

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.