Which is equal to the ideal mechanical advantage of a pulley system?
A. The number of ro...
Physics, 11.03.2020 02:56 frankcaroccio0203
Which is equal to the ideal mechanical advantage of a pulley system?
A. The number of rope segments supporting the load
B. The distance the load had to move
C. The length of the rope
D. The weight of the object being lifted
Answers: 3
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An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?
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An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.
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