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Physics, 02.03.2020 21:21, joelpimentel
The moon orbits the earth in an average time of 27.3 days at an average distance of 384000 km. use these facts and newtons version of keplers 3rd law to determine the mass of earth
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Answers: 1
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Physics, 22.06.2019 20:10, hncriciacheichi
Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.
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Physics, 23.06.2019 02:20, alexandroperez13
Aflute player hears four beats per second when she compares her note to a 523 hz tuning fork (the note c). she can match the frequency of the tuning fork by pulling out the “tuning join” to lengthen her flute slightly. what was her initial frequency?
Answers: 2
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The moon orbits the earth in an average time of 27.3 days at an average distance of 384000 km. use t...
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