Physics, 08.08.2019 23:20 meramera50
Star a and star b have different apparent brightnesses but identical luminosities. star a is 10 light-years away from earth and appears 36 times brighter than star b. how far away is star b?
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Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is
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If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?
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Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?
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Star a and star b have different apparent brightnesses but identical luminosities. star a is 10 ligh...
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