Water enters a 180° elbow with an average velocity v1 = 3 m/s. the diameter at the inlet of the elbow is 6.0 cm and the exit diameter is 2.0 cm. the water exits to atmosphere. determine the magnitude of the horizontal force required to hold the elbow in place. (ignore the pressure component of the force.)
Answers: 2
Physics, 21.06.2019 16:30
The mass of a muon is 207 times the electron mass; the average lifetime of muons at rest is 2.21 μs. in a certain experiment, muons moving through a laboratory are measured to have an average lifetime of 7.04 μs. for the moving muons, what are (a) β (b) k, and (c) p? the rest energy of the electron is 0.511 mev.
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Physics, 21.06.2019 23:30
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1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?
Answers: 1
Water enters a 180° elbow with an average velocity v1 = 3 m/s. the diameter at the inlet of the elbo...
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