Q1. A small, 300 cart is moving at 1.40 on an air track when it collides with the larger, 3.00 cart at rest. After the collision, the small cart recoils at 0.860. What is the speed of the large cart after the collision?

Q2. A cube of ice is taken from the freezer at -8.0 and placed in a 113 aluminium calorimeter filled with 306 of water at room temperature of 20.0. The final situation is observed to be all water at 15.0.

Q3. Two bowling balls each have a mass of 6.90 kg. They are located next to each other with their centers 22.80 cm apart. What gravitational force do they exert on each other? (Use G = 6.67 10-11 N • m2/kg2.)