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
Physics, 22.06.2019 15:00
You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?
Answers: 1
Physics, 22.06.2019 16:40
Which are true about beta reactions? there will be more than one answer. a. it has no change b. it doesn't change the mass of the number c. it has a mass of 0.0005 atoms d. it causes transmutation.
Answers: 3
Physics, 22.06.2019 19:40
It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc
Answers: 1
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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