An ac source drives a sinusoidal current of amplitude i0and frequency ? into an inductor having inductance l and a capacitor having capacitance c that are connected in series. the current as a function of time is given by i(t)=i0sin(? t)

recall that the voltages vl(t) and vc(t) across the inductor and capacitor are not in phase with the respective currents il(t) and ic(t). in particular, which of the following statements is true for a sinusoidal current driver?

a. vl(t) and vc(t) both lag their respective currents.
b. vl(t) and vc(t) both lead their respective currents.
c. vl(t) lags il(t) and vc(t) leads ic(t).
d. vl(t) leads il(t) and vc(t) lags ic(t).

The graph represents the distance a car travels over time while on the highway. which statement about the car's trip is accurate? a) the car does not move over time. b) the car travels at a constant velocity. c) the car's velocity increases constantly over time. d) the car's velocity decreases constantly over time.

Your starship, the aimless wanderer, lands on the mysterious planet mongo. as chief scientist-engineer, you make the following measurements: a 2.50-kg stone thrown upward from the ground at 14.0 m/s returns to the ground in 5.70 s ; the circumference of mongo at the equator is 2.20×10^5 km ; and there is no appreciable atmosphere on mongo. (a) the starship commander, captain confusion, asks for the following information: what is the mass of mongo? (b) if the aimless wanderer goes into a circular orbit 2.20×10^4 km above the surface of mongo, how many hours will it take the ship to complete one orbit? (c) an unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 44.0 km . to the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 23.0 m/s . if nothing is done to correct its orbit, with what speed (in km/h) will the spacecraft crash into the lunar surface?

What equation is used to calculate the weight of an object on a plant ?