Arock is thrown horizontally at a speed of 5 m/s front the top of a cliff 64.7 m high. the rock hits the ground 18 m from the base of the cliff. how would this distance change if the rock was thrown at 10 m/s?

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.