What is the energy of an electromagnetic wave that has a frequency of 8.0 x 1015 Hz? Use the equation E = hf, where h = 6.626 x 10-34 J•s.
A. 5.3 x 1018 J
B. 1.2 x 1049
C. 1.2 x 10-49 J
D. 5.3 x 10-18 j

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

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?

In which of the following is positive work done by a person on a suitcase