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Question: A certain superconducting magnet in the form of a solenoid of length 0.350 m can generate a magnetic field of 8.50 T in its core when its coils carry a current of 65 A. Find the number of turns in the solenoid.
What friction torque is necessary to reduce its angular speed from 90.0 {rm rpm} to 45.0 {rm rpm} in a time interval of 32.0 {rm s}.
A woman holds a tube of lipstick 5.7 cm from a spherical mirror and notices that the image of the tube is upright and one eighth its normal size. Determine the position of the image. Is it in front of or behind the mirror
A lightbulb has a resistance of 260 when operating witha potential difference of 130 V. What is the current in the light bulb
A service station charges a battery using a current of 6.6A for 4.0h, How much charge passes through the battery
One ball is perfectly inelastic and stays on the wall after collision andsecond ball is elastic and bounces of the wall. Elucidate the momentum change
A spherical object has an outside diameter of 50.0 . Its outer shell is composed of aluminum and is 1.80 thick. The remainder is uniform plastic with a density of 810. Determine the object's average density.
A circular solenoid contains 100 turns of wire and carries a current of 2 amps. Calculate the magnetic flux through one turn of the wire making the solenoid
A hairpin configuration is formed of two semiinfinite straight wires that are 3.42 cm apart and joined by a semicircular piece of wire (whose radius must be 1.71 cm, Find the magnetic field at the origin of the coordinate system
A block is placed at the end of the frictionless ramp and is pulled up the ramp through a solid ball on the end of a string that passes over a frictionless pulley that does not affect the motion of the block or ball. The ramp is 3.40 meters long and ..
A child playing tee ball hits a stationary 60g ball with a 220g bat swinging initially at 4.0m/s, What's the bat's post-impact speed
A small sphere of charge q1 = 0.848 µC hangs from the end of a spring as in figure (a). When another small sphere of charge q2 = ?0.594 µC is held beneath the first sphere as in figure (b), the spring stretches by d = 3.18 cm from its original length..
A point charge q1 = -2.3 x 10^ -6 C is located at the origin of a co-ordinate system. Another point charge q2 = 6.3 x 10^-6 C is located along the x-axis at a distance x2 = 6.1 cm from q1. 1) What is F12,x, the value of the x-component of the forc..
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