In electronics, the formula v = ir is called ohm's law. it gives the relationship in a circuit between the voltage v (in volts), the current i (in amperes), and the resistance r (in ohms). find r when i = 5 − 3i amperes and v = 21 + i volts. (simplify your answer completely. enter your answer in a + bi form.)

Which type of wave can travel without a medium

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.

Which one of the following represents the reduced forms of the two major electron carriers? nadh and fadh2 nad+ and fadh2 nad+ and fad nadh and fad