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The difference between a red shift and a blue shift has to do with wavelength frequency. t or f
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Madison pushes with a 210-n horizontal force on a 24-kg crate of coffee resting on a warehouse floor. the force of friction on the crate is 74 n. what is the acceleration?
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The ability to make things happen is also called a. heat b. force c. matter d. energy
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What do astronomers call a system that is composed of more than two stars...
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