A stock room worker pushes a box with mass 11.6kg on a horizontal surface with a constant speed of 3.40m/s. The coefficient of friction between the surface and the box is .21 what horizontal force must the worker apply to maintain the motion

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 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?