Asap pl

which statement is true?

select one:
a. geothermal power is generated from moving water.
b. oil, a renewable resource, is processed to make jet fuel.
c. wind power can turn turbines to generate electrical power.
d. propane, a renewable resource, is used in some heating systems.

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_