High power lasers in factories are used to cut through cloth and metal. one such laser has a beam diameter of 0.863 mm and generates an electric field at the target having an amplitude 0.955 mv/m. the speed of light is 2.99792 × 10⁸ m/s the permeability of free space is 4π × 10⁻⁷ t· n/a. what is the amplitude of the magnetic field produced? answer in units of t.
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In raising a 6200-n piano with a pulley system, the movers note that, for every 2.2 m of rope pulled down, the piano rises 0.12 m . ideally, find the force required to lift the piano.
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Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?
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A- a of 8.00 cm a of 34.0 nc. a , -, a of 25.0 nc is on of a of 15.0 cm .be toto aof ? a) b) c) j d) e)
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One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form
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High power lasers in factories are used to cut through cloth and metal. one such laser has a beam di...
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