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Atennis player swings her 1000 g racket with a speed of 10 m/s. she hits a 60 g tennis ball that was approaching her at a speed of 20 m/s. the ball rebounds at 39 m/s. (a) what is the magnitude of the change in momentum of the tennis ball?
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Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?
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Each line (unit) on the horizontal axis represents: 5 years 10 years 20 years all of the above
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Atennis player swings her 1000 g racket with a speed of 10 m/s. she hits a 60 g tennis ball that was...
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