Atoroidal solenoid with mean radius r and cross-sectional area a is wound uniformly with n1 turns. a second toroidal solenoid with n2 turns is wound uniformly on top of the first, so that the two solenoids have the same cross-sectional area and mean radius. (a) what is the mutual inductance of the two solenoids? assume that the magnetic field of the first solenoid is uniform across the cross section of the two solenoids. (b) if n1 = 550 turns, n2 = 290 turns, r = 10.6 cm, and a = 0.760 cm2, what is the value of the mutual inductance?

Ten students stand in a circle and are told to make a transverse wave. what best describes the motion of the students? each student bumps the shoulder of his or her neighbor. at the exact time, all students take a step to the right. the students skip clockwise, going in a circular motion. one at a time, each student lifts his or her hands up and then down.

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?