ununoctrium98161 ununoctrium98161
  • 08-01-2024
  • Physics
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A machine that operates a kiddie ride at an amusement park requires 2500 J to lift a 30.0-kg child 5.0 meters. What is the efficiency of this machine?

a. 5.9%
b. 17%
c. 59%
d. 67%

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