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Physics, 01.10.2019 22:00 babygirl226
Explain how we use a spectrometer to us determine what stars and planets are made of?
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Physics, 22.06.2019 23:00
Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.
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The power exerted by a muscle is the product of the force exerted and the velocity of contraction. the area of which of these shaded regions represents the power exerted while a weight is lifted at maximum speed?
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Physics, 23.06.2019 02:00
The gravitational force between pluto and charon is 3.61 Γ 1018 n. pluto has a mass of 1.3 Γ 1022 kg, which is only slightly greater than charonβs mass of 1.6 Γ 1021 kg. how far apart are pluto and charon? 2.0 Γ 107 m 2.4 Γ 1012 m 3.8 Γ 1014 m 5.8 Γ 1024 m
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