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A square coil of wire of side 3.00 cm is placed in a uniform magnetic field of magnitude 2.50 T directed into the page as in the figure shown below. The coil has 24.0 turns and a resistance of 0.780 O. If the coil is rotated through an angle of 90.0° about the horizontal axis shown in 0.335 s, find the following.
(a) the magnitude of the average emf induced in the coil during this rotation
mV
(b) the average current induced in the coil during this rotation
mA
H-F molecule has spring constant of 970 N/m. Assume that an H-F chemical laser, which lases betwee vibrational states of the H-F molecule, how many photons per seconde does it emit
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What the max speed of the oscillator?
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suppose you have just discovered a new x-shy-ray binary which contains a b2 main sequence star orbiting an unseen
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A loudspeaker of mass 20.00 {rm kg} is suspended the distance of h = 2.40 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.50 {rm m}.
An electron moves in the positive x-direction a distance of 2.31 m in 2.85·10-8 s, bounces off a moving proton, and then moves in the opposite direction a distance of 1.53 m in 3.33·10-8 s.
While pacing in the hallway at a constant velocity, you drop a tennis ball so that it falls towards the floor. calculate the height above the floor from which the tennis ball is released
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