Concept explainers
What is the efficiency of a machine that requires 100 J of energy to do 35 J of work?
Efficiency of machine.
Answer to Problem 19A
Efficiency is
Explanation of Solution
Given:
Energy required or input energy is 100 J.
Energy produced or output energy is 35 J
Formula Used:
The efficiency is given as,
Where,
Calculation:
For the given values, the efficieny of the machine will be,
Conclusion:
Therefore, the efficiency of the machine is
Chapter 9 Solutions
Conceptual Physics: The High School Physics Program
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