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What produces a record of seismic waves? richter scale seismogram barometer seismograph
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World class speed skaters can skate a 3,000-m course in about 4 minutes.what is their average speed for this course? a. 12.5 m/sb. 1.33 m/sc. 1.25 m/sd. 13.3 m/s
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The first law of thermodynamics is as follows: ∆u=q-w , which means in a system is equal to added, minus done by the system. the units for these variables are in .
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A ball is pushed from a stop and rolls 6 m in 2 s. Student A says the average speed of the ball is 3...
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