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When a mirror with a fixed beam on it is rotated through a certain angle, the reflected beam is rotated through an angle that is
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If the speed of a particle triples ,by what factor does its kinetic energy increase?
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The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?
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When a mirror with a fixed beam on it is rotated through a certain angle, the reflected beam is rota...
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