according to the condensation theory, the most important factor for the formation of our planets was
a.) the gravitational pull of the sun
b.) the interstellar dust attracting heat away from the protosun
c.) the process of nuclear fusion
d.) the nebular cloud condensing

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?