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A man is traveling on a bicycle at 14 m/s along a straight road that runs parallel to several railroad tracks. He hears the whistle of a train that is behind him. The frequency emitted with the train is840 Hz, but the frequency the man hears is 778 Hz. Take the velocity of sound to be 340 m/s.
1) What frequency is heard by a stationary observer located among the train and the bicycle?
2) What is the speed of the train, and is the train traveling away from or toward the bicycle?
A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, respectively, 13.1 kg and 3.76 10-3 m3. Find the mass of the gold in the rock
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A polar explorer pulls a sled on dry snow (the coefficient of kinetic friction is 0.12 for sled on snow). The rope attached to the sled pulls at an angle of 9° above the horizontal and the explorer pulls with with 600 N of force. The sled has a to..
a 28 kg block slides with an initial speed of 13 ms up a ramp inclined at an angle of 20 degrees with the horizontal.
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question an electron in the beam of a typical television picture tube is accelerated through a potential difference of
A professor shipwrecked on Hooligan's Island decides to build a telescope from his eyeglasses and some coconut shells. Which lens should he use as the objective
when comparing the experimental ir spectra to the literature ir spectra of the same compound the positions and
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