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a guitar string transmits waves at 509 m/s. to create a 491 Hz note, to what length should the guitar player shorten the string?
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Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane
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Simple machines can a. increase force only b. decrease force only c. increase or decrease force
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The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space. b. we'll know it immediately because it will be brighter than the full moon in the sky. c. we won't know about it until 600 years from now. d. none of the above.
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The movement of electrons between atoms is called an
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a guitar string transmits waves at 509 m/s. to create a 491 Hz note, to what length should the guita...
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