What is the potential energy of a pendulum with a mass of 3 kg that is suspended 1 m in the air (assume the pendulum will fall all 1 m).
Round your answer to the nearest whole number.

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.