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A 4-turn coil 2.0cm in diameter is rotated at 20 rev/s about an axis perpendicular to a uniform magnetic field. A voltmeter connected to the coil through rotating contacts reads a peak value of 320 microVolts. What is the magnetic field strength?
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.
The allowed energies of a simple atom are 0.0eV , 3.5eV and 5.0eV . An electron traveling at a speed of 1.6×10^6m/s collisionally excites the atom. What is the maximum speed the electron could have after the collision
A 4 kg hammer is accelerated at 4m/s^2 before striking a nail for 1.6 sec find the force of the hammer
Consider the ballistics pendulum experiment. If M=1kg and m=0.1kg, and the velocity of the bob-ball system right after the collision is Vf=2m/s, what was the initial velocity of the ball before it hit the bob
A hydrogen atom is in the 11s state. Determine the quantum number and Determine the orbital angular momentum in terms of hbar
An air-filled parallel-plate capacitor has plates of area 5.00 cm2 separated by 1.20 mm. What is the magnitude of the uniform electric field between the plates
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. What is the period of a satellite in a geosynchronous orbit
The range of human hearing extends from approximately 20 Hz to 20000 Hz. Find out the wavelengths of these extremes while speed of sound in air is equal to 348 m/s.
In a second training exercise, the centrifuge speeds up from rest with a constant angular acceleration. When the centrifuge reaches an angular speed of 2.50 rad/s.
A generator connected to an RLC circuit has an rms voltage of 140 volts and an rms current of 33 mega-amps. what is the inductive reactance of the circuit
Find the focal length of a glass lens that has an index of refraction equal to 1.58, a concave surface that has a radius of curvature of magnitude 104 cm, and a convex surface
The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground
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