A20.0 cm × 20.0 cm square loop of wire lies in the xy-plane with its bottom edge on the x-axis. the resistance of the loop is 0.550 ω . a magnetic field parallel to the z-axis is given by b = 0.760 y2t, where b is in tesla, y is in meters, and t is in seconds. what is the size of the induced current in the loop at t = 0.480 s ?

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?