When the switch is closed, what happens to the current in the circuit? (the intrinsic resistance of the inductor is zero.)

a. the current instantaneously becomes 2 .

b. the current instantaneously becomes 1 .

c. the current gradually increases from zero to 2 and then remains constant.

d. the current gradually increases from zero to 1 and then remains constant.

Abatter hits the baseball a with an initial velocity of v0 = 110 ft/sec directly toward fielder b at an angle of 23° to the horizontal; the initial position of the ball is 2.2 ft above ground level. fielder b requires 0.44 sec to judge where the ball should be caught and begins moving to that position with constant speed. because of great experience, fielder b chooses his running speed so that he arrives at the “catch position” simultaneously with the baseball. the catch position is the field location at which the ball altitude is 8.4 ft. determine the velocity of the ball relative to the fielder at the instant the catch is made.

The energy released by a nuclear fusion reaction is produced when

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers distance