(Double points) A pulley system is in equilibrium. From the movable pulley, a mass of 236 kg hangs, while from the fixed pulley a mass of 78.66 kg hangs. What is the
Mechanical Advantage of this pulley system?

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples