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Mathematics, 23.04.2021 05:20 marknjenbennetp3j1v1

A CB radio is rated at 7.5​ watts, and actual measurements show that it delivers 4.2 watts to its antenna. What is its​ efficiency?

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A CB radio is rated at 7.5​ watts, and actual measurements show that it delivers 4.2 watts to its an...

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