7.2 - Average Power
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Practice Questions
Test your understanding with targeted questions
What is the formula for average power in SHM?
💡 Hint: Recall that average power depends on force amplitude, displacement, and phase lag.
What happens to average power when δ equals π/2?
💡 Hint: Think about the cosine function.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the average power formula in steady-state forced SHM?
💡 Hint: Focus on the factors that contribute to average power.
True or False: Average power reaches a peak value at resonance.
💡 Hint: Consider what happens during resonant conditions.
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Challenge Problems
Push your limits with advanced challenges
Given a mass-spring system with a driving force of 15 N, a phase lag of 30 degrees, and a displacement amplitude of 5 m, calculate the average power absorbed by the system.
💡 Hint: Use the conversion for cos(30°) as √3/2.
Design a situation where an external oscillating force can induce resonance in a mechanical system. Explain your design.
💡 Hint: Consider parameters like mass, spring constant, and external force frequency.
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