Q1. A 5.19 g lead bullet travelling at 252 m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet while the other half is transmitted to the tree, what is the increase in temperature of bullet?
Q2. If you weigh 690 N on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 25.0 km?
Take the mass of the sun to be m_s = 1.98×1030 {rm kg}, the gravitational constant to be G = 6.67×10-11 {rm N} cdot {rm m^2/kg^2}, and acceleration by reason of gravity at the earth's surface to be g = 9.910 {rm m/s^2}.