suppose you are on a cart, initially at rest, which rides on a frictionless horizontal track. you throw a ball at a vertical surface that is firmly attached to the cart. if the ball bounces straight back as shown in the picture, will the cart be put into motion after the ball bounces back from the surface?

A1,200 kg car is accelerated at 3.7 m/s2. what force was needed to produce this acceleration? a. 4,440 n b. 324.3 n c. 4,388 n d. 304.3 n

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

Gunpowder residue is most likely to show up where on a shooters hands