Todd and Angela set up a ramp and released several cars from the top. If Todd and Angela want to
determine the average speed of their cars down the ramp, what information do they need?

Answer    "a salt" would be the best answerexplanationsalts can be defined as ionic compounds that are neither acids nor bases. nacl is an example of a salt, and its ionic.an enzyme is an organic compound which is covalently bonded, not ionically bonded.acids are generally held together by covalent bondsan element does not need any bonds to exist

Answer/// he concludes that the atom particles can be broken due to the paddle wheel being moved by particles coming out of the metal;