1. To determine the density of a liquid, an empty graduated cylinder is placed on a balance, and its mass is found to be 120 grams. The liquid is then added, up
to the 100 cubic centimeter mark, and the cylinder placed back on the balance.
If the balance now reads 265 grams, what is the density of the liquid?

On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?