A man is attempting to raise a 7.5-m-long, 30 kg flagpole that has a hinge at the base by pulling on a rope attached to the top of the pole, as shown in the figure below.(Figure 1).With what force does the man have to pull on the rope to hold the pole motionless in this position?

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