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A small current loop of area A=0.0008m2 and moment of inertia I=6.9e-07kgm2 carries a current i=0.0039A with its magnetic moment perpendicular to the Earth's magnetic field. The magnitude of the Earth's field is B=4.2e-05T.
a) What is the magnitude of the net torque T on the loop?T = ____ Nm
b) What is the angular acceleration a of the loop?a = ___ rad/s2
a cylinder conductor with radius 2r and length l carries a uniformly distributed net charge q. this conductor is
A particle with charge +7.20 nC is in a uniform electric field directed to the left. What is the magnitude of the electric field
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A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. By how much does the ball clear or fall short of clearing the crossbar
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q1. a cord is used to vertically lower an initially stationary block of mass m kg at a constant downward acceleration
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 12.0 cm, find the electric field just inside the paint layer
two equally charged insulating balls each weigh 0.32 g and hang from a common point by identical threads 50 cm long.
A 722 kg car stopped at an intersection is rear-ended by a1620 kg truck moving w/ a speed of 14.5 m/s. What is the speed of the wreck immediately after the collision
An electron and a proton move on concentric circular path in the plane of your paper, in a magnetic field that is perpendicular to the plane and is oriented towards you. Which particle follows the smaller circle
A 80-g bullet is fired from a rifle having a barrel 0.582 m long. Choose the origin to be at the location where the bullet begins to move. Then the force (in newtons) exerted by the expanding gas on the bullet is 14100 + 9100x - 24250x2, where x is i..
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