Apolice car on the side of the road (at rest) uses a radar gun to catch speeders as they approach it. the frequency the radar gun emits is 8 x 10^9 hz and the speed limit is 65 mi/hr. what is the difference in frequency of the emitted and returned radar wave? (a positive answer means the returned wave has a greater frequency than the emitted wave; a negative answer means the returned wave has a smaller frequency than the emitted wave.)
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Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?
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Aturntable that spins at a constant 74.0 rpm takes 3.10 s to reach this angular speed after it is turned on. find its angular acceleration (in rad/s2), assuming it to be constant, and the number of degrees it turns through while speeding up.
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Apolice car on the side of the road (at rest) uses a radar gun to catch speeders as they approach it...
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