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Help, please!!!!! D:
1) Pedro and Brittany design a mechanical device that will move desks from one classroom to another on the floor above. They measure the forces and distances and calculate the input and output work. If their calculations show that the input work equals the output work is their calculation correct? Explain.
2) How does the output work compare to the input work for a machine that has efficiency
a)equal to 100%
b)less than 100%
I would really appreciate it if someone helped me out!!
Sagot :
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