Physics, 01.07.2020 17:01 skylarschumacher7
Two trains on separate tracks move toward one another. Train 1 has a speed of 140 km/h, train 2 a speed of 90.0 km/h. Train 2 blows its horn, emitting a frequency of 500 Hz. What is the frequency heard by the engineer on train 1? (Assume the speed of sound is 345 m/s.)
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Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
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Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?
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Two trains on separate tracks move toward one another. Train 1 has a speed of 140 km/h, train 2 a sp...
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