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A circular coil having 13 turns and a radius of R = 13.8 cm carries a current of 2.20 A. It is placed in a uniform magnetic field of 64.0 mT. The initial angle between the magnetic moment of the coil τ and the magnetic field B is 38.0o.
Calculate the magnetic dipole moment of the coil.
What is the magnitude of the torque acting on the coil?
How much work is required to rotate the coil so that the B-field lies in the plane of the coil?
An advertisement shows a 1239 kg car slowly pulling at constant speed a large passenger airplane to demonstrate the power of its newly-designed 79.7 hp (horsepower) engine. How much work is performed by the car on the airplane during this time
If the phase angle for a block-spring system in SHM is π/8 rad and the block’s position is given x = xm cos(ωt + ?),what is the ratio of the kinetic energy to the potential energy at time t = 0?
A uniform disk has a mass of 4.6 kg and a radius of 0.2 m. The disk is mounted on frictionless bearings and is used as a turntable. What is the final angular momentum of the system
a stone falls from rest from the top of a cliff. a second stone is thrown downward from the same height 3.4 s later
In an ideal Rankine Cycle, steam exhausts a turbine at the rate of 10.1 million lbm per hour into a condenser at a temperature of 102 degrees F (Tsat for 1.0 psia), What is the rate of heat rejection by the condenser
Objects of equal mass are oscillating up and down in simple harmonic motion on two different vertical springs. The spring constant of spring 1 is 205 N/m. Find the spring constant of spring 2.
It is desired to cool iron parts from 500°F to 100°F by dropping them into water that isinitially at 65°F. how many kilograms of water areneeded per kilogram of iron
A 0.20 kg mass at an angle of 40 degrees and a 0.275 kg mass at an angle of 155 degrees. Determne the net force of the two know masses
Two coils are arranged in close proximity to one another. The first coil is connected to a Duracell battery. Explain what, if any, effect this has on the second coil. Use an electromagnetism principle to justify your answer.
Peyton Manning, a football quarterback, is traded from the Denver Broncos to the Telfonian Space Nerds. If he can throw a football at a speed of 29 m/s at a horizontal angle of 30 degrees, how much further and higher does he throw the ball after h..
7.9 mol of helium are in a 14 L cylinder. The pressure gauge on the cylinder reads 68 psi. What is the average kinetic energy of a helium atom
A visitor to a lighthouse wishes to determine the height of the tower. She ties a spool of thread to a small rock to make a simple pendulum, What is the height of the tower
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