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Q. As you begin to walk directly away from the speaker, at what distances from the speaker do you hear a minimum sound intensity? The room temperature is 20^circ {rm{C}}.

Q. How many 92 W lightbulbs can you use in a 120 V circuit without tripping a 16 A circuit breaker? (The bulbs are connected in parallel, which means that the potential difference across each lightbulb is 124 V.)

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