PLEASE PLEASE PLEASE I NEED THIS ASAP Select all the factors that influence the amount of elastic energy an object has. CHOOSE ALL THAT APPLY. A Compression

B Hardness

C streching

D Mass

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

Which object is most likely represented by a dot?

Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil