When a wave passes from one medium to another, its remains constant.
a. velocity
b. wavelength
c. frequency

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?

Am i correct on these two physics questions?

Acorporation gives out its profits as dividends paid to whom?