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Fifty Circular turns of wire are wound closely together, so that all of them have a radius of close to 0.05,. If the wire carries a current of 2 A, what is the magnitude of the magnetic field at its center.
Then a second inductance L2 =10 mH is connected in parallel with L1. Find out (a) the current that the generator delivers to L1 and (b) to the parallel combination.
A dipole (two equal and opposite charges) are placed 1 nm apart. What is the electric force on the -e charge due to the +e charge
A 0.20 kg billiard ball is thrown at a 45 degree angle upwards from the edge of a 12.192 meters tall building. What was the speed of the ball when it was launched
A circular loop of wire of radius 0.50 m is in a uniform magnetic field of 0.30 T. The current in the loop is 2.0 A. What is the magnetic torque when the plane of the loop is perpendicular to the magnetic field
A uniformly charged ring of radius 10.2 cm has a charge of 87.5 µC. Find the electric field on the axis of the ring at x = 3.0 cm
A lit firecracker is shot straight up at 50 m/s. How high is it above ground level 5 s later when it explodes? How fast is it moving when it blows up? How far has it fallen from its maximum height?
The rms speed of the molecules in 1.1 of hydrogen gas is 1700 .500J of work are done to compress the gas while, in the same process, 1800 of heat energy are transferred from the gas to the environment. Afterward, what is the rms speed of the molecule..
An iron disk has a radius of 0.525 m and a mass of 377 kg. The disk is mounted on its axis so that it is free to spin. How much force is required if the force is applied at a distance 15.5 cm from the axis of rotation
A 1.5 kg mass attached it spring with a force constant of 20.0 N/m oscillates in horizontal, frictionless track. At t=0, Determine the total energy of the oscillating system
Starting from rest, a 96-kg firefighter slides down a fire pole. The average frictional force everted on him by the pole has a magnitude of 790 N, How far did he slide down the pole
A 80 kg football player stand at the end of a uniform 8m, 50kg diving board supported as shown. Determine the forces exerted by the two supports.
A hydrulic jack in a mechanic's shop supports a car of mass M= 2.1 x 10^3 kg. What force must the pump exert on the fluid at the input to support the weight of the car
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