Physics, 05.05.2020 07:28 robert7248
You wish to lift a 400 lb car engine a vertical distance of 3 ft using a strong rope. Unfortunately, your hand crank winch can only generate 100 lb of tension in your rope. In order to overcome this obstacle, you use a multiple pulley system (block and tackle) to lift the engine.
What is the mechanical advantage of this system?
Answers: 1
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Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley
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Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?
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A200 g lead frying pan gains 2000 joules of heat. what is the change in temperature
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