At t = 0 a car has a speed of 30 m/s. at t = 6 s, its speed is 14 m/s.
what is its average acceleration during this time interval?

Which one of the following research methods can show cause and effect

Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.

What are the starting materials for nuclear fission? two small nuclei two large nuclei a neutron and a large nucleus a neutron and a small nucleus