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 ?

Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?

Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon

Ahot-air balloon is 11.0 m above the ground and rising at a speed of 7.00 m/s. a ball is thrown horizontally from the balloon basket at a speed of 9.00 m/s. ignore friction and air resistance and find the speed of the ball when it strikes the ground.