Please help! A paintball is shot horizontally from a paintball marker 0.55 m above the ground. The initial velocity of the paintball is 250 m/s. How long will it take for the bullet to hit the ground?

A1kg cart slams into a stationary 1kg cart at 2 m/s. the carts stick together and move forward at a speed of 1 m/sl. determine whether kinetic energy was conserved in the collision. use the law of conservation of energy to explain the collision

Identify the amplitude on the diagram and give the correct description. question 3 options: a because amplitude is the distance from wave crest to wave crest. b because the wavelength shows amplitude. c because amplitude is the distance between a crest (or trough) and rest. d because wavelength show amplitude. (brainiest if you get it right! ) ~kayla

In what direction does the medium move relative to the direction of the wave? explain.