For a lab, you place a coin on the edge of a turn table with radius of 0.5 cm, and spin at increasing speed until it slides off. You measure that the velocity when the coin slid off was 3 m/s2 . What is the coefficient of static friction between the coin and the turn table?

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?