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What is the wavelength of radiation with a frequency of 1.50x10^13 hz?
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Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70โc. calculate the work (in kj) done during this process.
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As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy
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Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.
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What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration
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What is the wavelength of radiation with a frequency of 1.50x10^13 hz?...
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