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A piece of copper wire is formed into a single circular loop of radius 12 cm. A magnetic field is oriented parallel to the normal to the loop, and it increases from 0 to 0.65 T in a time of 0.45 s. The wire has a resistance per unit length of 3.3 10-2 /m. What is the average electrical energy dissipated in the resistance of the wire.
A bowling ball weighing 71.2{\rm N} is attached to the ceiling by a 3.70{\rm m} rope. find the tension in the rope
A portable electric heater uses 14 Amp of current. What is the smallest radius of copper wire that can be used in the extension cord
A major-league pitcher can throw a baseball in excess of 44.2m/s. If a ball is thrown horizontally at this speed, how much would it drop by the time it reaches the catcher who is 16.10 m away from the point of release.
A simple pendulum consists of a ball connected to one end of a thin brass wire. find the change in the period of the heated pendulum
find the potential difference across the capacitor. A conductor consists of a circular loop of radius R and two straight, long sections. The wire lies in the plane of the paper and carries a current I.
You stand on the shore of a small river that measure 10 meters across. You take your cat and throw it into the middle of the stream. How long did it take the cat to reach you
A small bird's wings can undergo a maximum displacement amplitude of 4.8 cm (distance from the tip of the wing to the horizontal). what is the oscillation frequency of the wing tips
A coil has 480 turns and self-inductance 3.40 mH. At t = 0.0150 s, what is the magnitude of the induced emf
The size of the virtual image formed by a lens is 2 times the size of the object. Find the focal length of the lens
An outboard motor for a boat is cooled by lake water at 14.7 degC and has a compression ratio of 14.1, Calculate efficiency of the engine's Otto Cycle
An air mass has a temperature of 68F at 970hPa with a mixing ratio of 5 g kg-1. Without any condensation or mixing the air mass now has a temperature of 50F and a pressure of 750hPa.
A Ferris wheel with a radius of 7.7 m rotates at a constant rate, completing one revolution every 37 s, Find the direction and magnitude of a passenger's acceleration when at the bottom of the Ferris wheel
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