Agolf ball is at rest on the grass. what must happen to cause the ball to move? a: a balanced net force must be applied. b: an unbalanced net force must be applied. c: the net force must be zero. d: the net force must be greater than the applied force.

You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 3.00 ms . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?