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A circular wire loop of radius 14.9 cm carries a current of 3.04 A. It is placed so that the normal to its plane makes an angle of 50.9° with a uniform magnetic field of magnitude 15.0 T.
a) What is the magnitude of the torque acting on the loop?
b) Compute the magnitude of the magnetic dipole moment of the loop in amperes-square meters.
A high-voltage transmission line with a resistance of 0.335 ?/km carries a current of 1.45 kA, What fraction of the transmitted power does this loss represent
A roller coaster (370 kg) moves from A (5.00 m above the ground) to B (25.0 m above the ground). What is the change in the car's kinetic energy
Three metal fishing weights, each with a mass of 1.00x102 g and at temperature of 100oC, are placedin 1.00x102g of water at 35oC. The final temperature of the mixture is 45.0oC. What is the specific heat of the metal in the weights?
A barefoot field-goal kicker imparts a speed of 23 m/s to a football initially at rest. estimate the force exerted by the ball on the kickers foot
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 22.0 m/s at an angle 60.0 degrees; find the maximum height the ball goes above the ground
a calculate the limiting visual brightness in magnitudes for naked eye viewing through a 10-m telescope. assume the eye
A projectile is fired from the edge of a 10m high cliff at 10m/s and an angle of 30 degrees from the horizontal. what is the magnitude of the final velocity
A coin is located 20.0 cm to the leftof a converging lens (f = 16.0 cm). A second, identicallens is placed to the right of the first lens, Find the separation between the lenses
What is the potential difference across capacitor. How much charge is on each place.
Radioactive isotopes are often introduced into the body through the bloodstream. If the decay rate in the thyroid 24.0 d later is actually measured to be 17.0Bq , what percent of the tracer went to that gland
A barge with a mass 1.50 X 10^5 kg is proceeding down river at6.2 m/s in heavy fog when it collides broadside with a bargeheading directly across the river. What are the speed and direction of motion of the first barge
A cycle wheel is rotating at 47rpm when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration of 0.47 rad/s2. Find how many revolutions the wheel makes during this time
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