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A coil is wrapped with 195 turns of wire on the perimeter of a square frame of sides 16.9 cm. Each turn has the same area, equal to that of the frame, and the total resistance of the coil is 2.04 . A uniform magnetic field is turned on perpendicular to the plane of the coil. If the field changes linearly from 0 to −0.128 Wb/m2 in a time of 0.728 s, find the magnitude of the induced emf in the coil while the field is changing. Answer in units of V.
A gun shoots a 5.00 gramsbullet with a horizontal velocity of 1000m/s. the bullet strikes atree and penetrates to a depth of 10.0 meters. find the mechanicalenergy lost to friction in bringing the bullet to rest.
A projectile is thrown from a point 39.2m away from the foot of a building 19.6m high and just reaches the top horizontally. Find the velocity of projection and the angle of throw
Illustrate the role of the Sun's differential rotation in the formation of sunspots. Explain (briefly) the 22 year solar cycle, stating its essential features. Estimate the y-component of magnetic force.
Calculate the magnitude and direction of the transverse horizontal force acting on the train
A positron (q = +e) moves at 4.3x10^7 m/s in a magnetic field of magnitude 0.52 T. The magnetic force on the positron has magnitude 2.0x10^-12 N. What is the angle between the velocity and the field?
consider a solid sphere of radius 4 cm at a temperature of 19 degrees celsius. suppose the sphere is completely
A test charge of +2 micro C is placed halfway between a charge of +6 micro C and another +4 micro C sperated by 10cm. what is the magnitude of the force on the test charge
A small but measurable current of 7.4 x 10-10 A exists in a copper wire whose diameter is 2.9 mm, calculate the current density and electron drift speed
An elevator has mass 550kg , not including passengers. The elevator is designed to ascend, at constant speed, What is the maximum number of passengers that can ride in the elevator
Calculate the de Broglie wavelength ? of an electron with energy EF in sodium, and compare the value with the atomic separation R in sodium
At a steady state, a well-insulated compressor takes in air at 60 degrees Fahrenheit, 14.2 lbf/in^2, Determine the compressor power
A hydrogen atom in the n= 2 state absorbs a photon with wavelength 486nm. Find the change in the orbiting electron's kinetic energy
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