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A machine does 500 J of work in 10 seconds. What is its power?
A machine does 500 J of work in 10 seconds. What is its power?
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Practice Questions
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Q1
A machine does 500 J of work in 10 seconds. What is its power?
50 W
100 W
200 W
500 W
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Power = Work / Time = 500 J / 10 s = 50 W.
Questions & Step-by-step Solutions
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Q
Q: A machine does 500 J of work in 10 seconds. What is its power?
Solution:
Power = Work / Time = 500 J / 10 s = 50 W.
Steps: 5
Show Steps
Step 1: Identify the amount of work done by the machine, which is 500 Joules (J).
Step 2: Identify the time taken to do the work, which is 10 seconds (s).
Step 3: Use the formula for power, which is Power = Work / Time.
Step 4: Substitute the values into the formula: Power = 500 J / 10 s.
Step 5: Calculate the result: 500 J divided by 10 s equals 50 Watts (W).
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