A stationary motion detector sends sound waves of
A stationary motion detector sends sound waves of frequency0.135 MHz toward a truck approaching at a speed of 49.2 m/s. What is the frequency of the waves reflected back to the detector? (Take the speed of sound to be 343 m/s.)
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earths radius is 6384 km how many rotations per day would earth have to spin such that a person standing on the equator
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an electron that has a horizontal initial speed of 450 106 ms enters a region that has anelectric field of 120 vm
a stationary motion detector sends sound waves of frequency0135 mhz toward a truck approaching at a speed of 492 ms
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two point charges are placed on the x axis as follows chargeq1 -150 nc is located at x200m and a charge q2 500 nc is
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