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You have a summer job working for a major manufacturer of audio components. The lead designer of loudspeakers asks you to make a calculation for a prototype speaker. The speaker coil consists of 75 turns of wire, 4.0 centimeter in diameter. The current in the speaker will be 2.9 Amp, when the force on the speaker coils is 14.8 Newton. Find what strength magnetic field will give this force?
Answer = _______________ T
In the winter sport of curling, players give a 20kg stone a push across a sheet of ice. How much force does the curler exert on the stone
Inez is putting up decorations. She ties three light silkribbons together at the top of a getaway and hang a balloon fromeach ribbon. What is the common charge each balloon carries
A 668-kg elevator starts from rest and moves upward for 4.30 s with constant acceleration until it reaches its cruising speed, 1.65m/s. What is the average power of the elevator motor
a proton enters the gap between a pair of metal plates an electrostatic separator that produces a uniform vertical
A solenoid of n=100 turns per centimeterhas a current i running in it suchthat the resulting magnetic field is B=1T. Find the magnitude of the currenti.
If the top coil were rotated 90 degrees about a vertical axis through the center of the coil so it is perpendicular to the balance coil, how would the results of the experiment change
A 2 kg ball is dropped from a height of 1/5 m. It bounces off the floor with a velocity of 1 m/s. What is the impulse (magnitude and direction) applied to the ball during the collision with the floor
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A diver shines a flashlight upward from beneath the water at a 43.7 %u2218 angle to the vertical. At what angle does the light leave the water
A ranger in a national park is driving at 32.0 mi/h when a deer jumps into the road 200 ft ahead of the vehicle. What is the maximum reaction time allowed
We have an RC circuit with a 1.0 mega Faraday capacitor, a 20 kilo-ohms resistor, amd a 9.0 volt battery. what is the voltage between the plates of the capacitor
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