A car has a mass of 900 kg and a truck has a mass of 1800 kg. In which of the following situations would they have the same momentum? (2 points)

Which two particles are found in the center of an atom

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?