Physics, 20.07.2019 15:00 nadine6085859r
When astronomers observe the spectra of distant galaxies, they notice that the hydrogen emission lines are shifted noticeably toward the red end of the visual spectrum, a phenomenon called red shift. red is lowest frequency of visible light. what does red shift indicate about the movement of the distant galaxies?
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When you turn on a battery-operated device, an electrical circuit is
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Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?
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Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and
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What is the largest meteoroid that has collided with this planet
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When astronomers observe the spectra of distant galaxies, they notice that the hydrogen emission lin...
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