Power - Copyright by Holt, Rinehart and Winston. All rights...

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Unformatted text preview: Copyright by Holt, Rinehart and Winston. All rights reserved. Objectives Relate the concepts of energy, time, and power. Calculate power in two different ways. Explain the effect of machines on work and power. Copyright by Holt, Rinehart and Winston. All rights reserved. Concept Check - Power Mike applied 10 N of force over 3 m in 10 seconds. Joe applied the same force over the same distance in 1 minute. Who did more work? 1. Mike 2. Joe 3. both did the same work Copyright by Holt, Rinehart and Winston. All rights reserved. Concept Check - Power Mike applied 10 N of force over 3 m in 10 seconds. Joe applied the same force over the same distance in 1 minute. Who did more work? 1. Mike 2. Joe 3. both did the same work Both exerted the same force same force over the same displacement same displacement . Therefore, both did the same amount of work same amount of work . Time does not Time does not matter for determining the work done matter for determining the work done . Copyright by Holt, Rinehart and Winston. All rights reserved....
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Power - Copyright by Holt, Rinehart and Winston. All rights...

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