Physics, 10.03.2021 08:10 2alshawe201
A man uses a rod of length 5.0m to lift a 700 kg marble. The fulcrum is 0.50m from the end of the bar that is under the marble. Calculate the mechanical advantage and minimum effort required to lift the load. If the efficiency of this system is 90% determine it's velocity ratio.
Answers: 3
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In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
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A man uses a rod of length 5.0m to lift a 700 kg marble. The fulcrum is 0.50m from the end of the ba...
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