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Two circular coils are concentric and lie in the same plane. The inner coil contains 92 turns of wire, has a radius of 0.018 m, and carries a current of 5.5 A. The outer coil contains 110 turns and has a radius of 0.032 m. What must be the magnitude of the current in the outer coil, such that the net magnetic field at the common center of the two coils is zero?
A 1.55--tall fisherman stands at the edge of a lake, being watched by a suspicious trout who is 3.50 from the fisherman in the horizontal direction, At what angle from the vertical does the fish see the top of the fisherman's head
A tuning fork of unknown frequency makes three beats per second with a fork of frequency 373 Hz, What is the frequency of this fork
A lumberjack (mass = 98 kg) is standing at rest on one end of a floating log (mass = 290 kg) that is also at rest. Determine the velocity of the second log if the lumberjack comes to rest on it
A pot containing 1.01 liter of water, initially at 19°C, is placed on a 1051 W electric heating element. How much heat is necessary to boil all the water away
A projectile is fired in such a way that its horizontal range is equal to 2 times its maximum height. What is the angle of projection
A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 25.0° below the horizontal. Find the car's position relative to the base of the cliff when the car lands in the ocean
The center of mass of a proton with mass 1.673·10-27 kg and alpha particle with mass 6.645·10-27 kg is moving with a speed of 6.993×105 m/s
A small metal ball with a charge of 0.45 C and a mass of 34 g (0.034 kg) enters a region where there is a magnetic field of 0.55 T. From Newton's second Law, what is the magnitude of the acceleration of the charged ball
At t = 0, a rectangular coil of resistance R = 1.6 ? and dimensions w = 3 cm and L = 8 cm enters a region of constant magnetic field B = 1.7 T directed into the screen, find the force required at time t = 0.8 sec to maintain this velocity
A solenoid 27.0 cm long and with a cross-sectional area of 0.510cm2 contains 410 turns of wire and carries a current of 70.0 A, Calculate the energy density in the magnetic field if the solenoid is filled with air
q1. a wheel is spinning clockwise at a 12.0 revolutions per second at t 0. because of friction in the bearings
Write at least one paragraph in which you define diffraction and interference, discuss Huygens' Principle and explain why light passing through a narrow slit
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