document.write( "Question 1162256: Silvia uses a lever to move a rock. She pushes the lever with 60 N-m of work, and it does 56 N-m of work to move the rock. What is the efficiency of the lever? (Be sure to correctly identify which number is input and which is output.) \n" ); document.write( "
Algebra.Com's Answer #786021 by ikleyn(52946)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "It is the ratio of the smaller value to the greater one.\r
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