Perhaps you have heard of or seen induction cooktops, another great application of the principles from our course. A large alternating current (AC) circuit moves in conductors just under the glass surface of the cooktop. The changing flux induces a current in the metal pan that heats the pan and the food it in, but the cooktop itself stays cool. In this picture, the half of the block of cheese in the cut-across pan melts, but the other half that hangs out of the pan does not. What would happen if the cooktop were energized with steady, constant direct current (DC)

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue

Which lists the fundamental forces in order, from strongest to weakest? strong nuclear, weak nuclear, electromagnetic, gravitational strong nuclear, electromagnetic, weak nuclear, gravitational gravitational, weak nuclear, electromagnetic, strong nuclear electromagnetic, gravitational, strong nuclear, weak nuclear

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon