you need to use a monitor and lightweight cable to lift a 2.0 kg copper weight to a height of 3m. To do so, you've decided to use a 1000V power supply to charge a capacitor, then run the motor by letting the capacitor discharge through it. If the motor is 90 percent efficient (that is, 10 percent of the energy supplied to the motor is dissipated as heat), what minimum capacitance do you need?