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A supersonic aircraft flies at 3 km altitude at a speed of 1000 m/s on a standard day. How long after passing directly above a ground observer is the sound of the aircraft heard by the ground observer
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Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60∘ with each other as shown in the figure. what is the intensity of the transmitted beam, st?
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Photons with the highest energy have the longest period
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A supersonic aircraft flies at 3 km altitude at a speed of 1000 m/s on a standard day. How long afte...
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