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The Superconducting magnet for the experimental MRI studies at a laboratory is a 1 m long solenoid of 60 cm diameter, producing a eld of 5 T. The current energizing the device is 250 A.
a) How many turns of this 250 A superconductor are in this magnet?
b) What is the inductance of the magnet?
c) How long will it take to \charge" the magnet to full eld with a power supply providing 1V?
Light from a laser beam with a wavelength of 600 nm passes through a narrow single slit and observed on a screen 1.5 m behind the slit. The first minimum of the diffraction pattern is 1.5 cm from the central maximum.
You are riding on a Jet Ski at some angle upstream on a river flowing with a speed of 2.8. Assume the Jet Ski is moving at a speed of 12 relative to the water. At what angle should you point the Jet Ski if your velocity relative to the ground is t..
What is the magnitude of the electrostatic force the molecule exerts on it?
Two automobiles, each of mass 1000 kg, are moving at the same speed, 21 m/s, when they have an inelastic collision. In what direction and at what speed does the wreckage move if one car was driving north and one east?
Three successive resonance frequencies of an air column are 75, 125, and 175 Hz, What is the fundamental (lowest) frequency
The electric field on the axis of a uniformly charged ring has magnitude 400kN/C at a point 5.6cm from the ring center, Find the rings radius and charge
Evalute the acceleration of each block and the tension in the string? Repeat the problem, adding a coefficient of kinetic friction between each block and the surface of 0.10.
What are the corresponding velocity vectors
A small glass bead has been charged to + 30{rm nC} . a)What is the magnitude of the acceleration of a proton that is 3.0{rm cm} from the center of the bead? b)What is the magnitude of the acceleration of an electron that is 3.0{rm cm} from the cen..
What pull does each one exert if their resultant pull is 402-N straight upward.
A 650 kg weather balloon is designed to lift a 4600 kg package. What volume should the balloon have after being inflated with helium 0 degrees Celsius and 1 atm pressure to lift the total load.
A stunt man whose mass is 70 kg swings from the end of a 3.7-m long rope along arc of a vertical circle. Presume he starts from rest when the rope is horizontal.
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