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A construction worker uses 1,000 J of work to screw two boards together. The screw does 855 J of work. Calculate the efficiency of the screw. PLZ HELP!!! ​
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A construction worker uses 1,000 J of work to screw two boards together. The screw does 855 J of work. Calculate the efficiency of the screw.

PLZ HELP!!!


​

User Mastier
by
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1 Answer

6 votes

Answer:

The efficiency of the screw is 85.5%

Step-by-step explanation:

to calculate efficiency you have to do

efficiency=energy output/ energy input × 100%

so e=855/1000 × 100%=85.5%

User Edd Turtle
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