Physics, 12.09.2021 20:10 calderonjudith9351
1. Jack & Jill went up the hill to fetch a pail of water. At the well, Jill used a force of 20.0 N to turn the
crank handle of radius 0.400 m to rotate the axle of radius 0.100 m, so she could raise the 60.0 N bucket
of water. A) What is the ideal mechanical advantage of the wheel? B) What is the actual mechanical
advantage of the wheel? c) What is the efficiency of the wheel? (IMA = 4.0, AMA = 3.0, Eff = 75%).show your work for all parts of the question.
Answers: 2
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Asample of a gaseous substance changes into liquid. this process is called (blank) and it takes place when heat is (blank) a gaseous system
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Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?
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Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?
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1. Jack & Jill went up the hill to fetch a pail of water. At the well, Jill used a force of 20.0...
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