Find the standard deviation of 7, 11, 8, 10, 9 if necessary round your answer to the nearest tenth

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.

When a pair of 10-n forces act on a box of candy, the net force on the box is a 20 n. b about 14 n. c zero. d any of the above depending on the directions of forces.