Q1. Eight lights are connected in parallel to a 116 V source by two leads of total resistance 1.1. If 240 mA flows through each bulb, what is the resistance of each? What fraction of the total power is wasted in leads?
Q2. Father racing his son has 1/3 the kinetic energy of the son, who has 1/3 the mass of the father. The father speeds up by 1.0 m/s and after that has the same kinetic energy as the son. What are the original speeds of (a) father and (b) son?