Physics, 21.01.2021 22:20 trejo282961
5. The Doppler effect applies to light waves as well as sound waves. Astronomers use this to measure the motion of stars and galaxies. In 1929, Edwin Hubble
discovered that light from distant galaxies was shifted away from the blue end of the spectrum and towards the red end of the spectrum Red light has a longer
wavelength (and a lower frequency than blue light. What could Hubble conclude about these galaxies?
O A The distant galaxies are growing smaller
OB. The distant galaxies are growing larger
OC. The distant galaxies are moving towards the Earth
D. The distant galaxies are moving away from the Earth
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Physics, 21.06.2019 19:20
Aferris wheel is a vertical, circular amusement ride with radius 9 m. riders sit on seats that swivel to remain horizontal. the ferris wheel rotates at a constant rate, going around once in 9 s. consider a rider whose mass is 56 kg. at the bottom of the ride, what is the perpendicular component of the rate of change of the rider's momentum? at the bottom of the ride, what is the vector force exerted by the seat on the rider?
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Physics, 22.06.2019 16:00
Which composition of water moves to begin a deepwater current?
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Physics, 22.06.2019 17:30
Describe cytokinesis in plants and animals. in animals: in plants.
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Physics, 22.06.2019 18:00
What structural formula represents 4 electrons shared between two atoms?
Answers: 1
5. The Doppler effect applies to light waves as well as sound waves. Astronomers use this to measure...
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