Physics, 26.08.2019 22:30 bookprincesslol
The purpose of any simple machine is to allow a job to be done with less force than would normally be needed. however, when a string of simple machines are added together to accomplish a task, the overall efficiency of the machine decreases. write a brief essay explaining why the efficiency of a complex machine decreases as more simple machines are used. be sure to include a discussion on the conservation of energy in your explanation.
Answers: 1
Physics, 22.06.2019 10:00
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
Answers: 3
Physics, 22.06.2019 11:00
If a simple machine reduces the strength of a force, what must be increased?
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Physics, 22.06.2019 20:00
Aturntable that spins at a constant 74.0 rpm takes 3.10 s to reach this angular speed after it is turned on. find its angular acceleration (in rad/s2), assuming it to be constant, and the number of degrees it turns through while speeding up.
Answers: 2
The purpose of any simple machine is to allow a job to be done with less force than would normally b...
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