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A 15-loop circular coil 22 cm in diameter lies in the xy plane. The current in each loop of the coil is 7.6 A clockwise, and an external magnetic field B = ( 0.55 i + 0.60 j - 0.65 k ) T passes through the coil. (a) Determine the x, y, and z projections of the magnetic moment of the coil, (μ). (b) Determine the x, y, and z projections of the torque on the coil due to the external magnetic field. (c) Determine the potential energy U of the coil in the field (take U = 0 at θ = π/2 ). Express your answers using two significant figures.
An ore sample weighs 17.5N in air. When the sample is suspended by a light cord and totally immersed in water, the tension in the cord is 11.2N. Find the total volume of the sample
A car tire is pressurized in the morning at a temperature of 200C to 2atm. By afternoon at a temperature of 350C the tire pressure has changed to 2.1atm but the volume has decreased by 2%.
A 30 kg boy rides a roller coaster. The acceleration of gravity is 9.8 m/s^2. With what force does he press against the seat when the car moving at 6.1 m/s goes over a crest
A solid cylinder of mass 2.00kg and radius 1.50x10^-2m is free to rotate on a frictionless axle. determine the acceleration of the falling mass
A 5kg steel ball is dropped onto a copper plate from a heightof 10m. If the ball leaves a dent 3.2mm deep, what is the average force exerted by the plate on the ball during impact
A box is pushed across the floor against a constant frictional force. The box is pushed across the room to the east in 30 seconds and returned to its starting point (pushed to the west) in 60 seconds.
How much work must be done to accelerate a baton from rest to an angular speed of 6.96 rad/s about its center
An electron is accelerated from rest in a uniform electric field of intensity 420 N/C. Find the following: its velocity and kinetic energy after 3.0 nanoseconds. the distance it travels during the time interval
A 416 kg car moving at 17.8 m/s hits from behind another car moving at 11.3 m/s in the same direction. If the second car has a mass of 757 kg and a new speed of 13.0 m/s, what is the velocity of the first car after the collision?
A bicycle wheel (with very light spokes) of mass M and radius R is mounted on a light axel through its center. Write a statement of conservation of energy for this system
The electric potential on the surface of a conductor (in static equilibrium) is 5V. find electric potential in the interior of the conductor
a horizontal spring-mass system has low friction spring stiffness 185 nm and mass 0.3 kg. the system is released with
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