Bettina spoke into a microphone during the school play to increase the sound of her voice so the audience could hear her speak . the loudness of Bettina voice was changed by what type of energy? a ) sound b) electrical c) potential d ) stored

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Q: maximum energy that can be transferred

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Q: 87. Electric energy units are often expressed in "kilowatt-hours." (a) Show that one kilowatt-hour…

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Q: 10 Fx (N) O -8 -8 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 x (m) 4,

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Q: 7.How much time would be required to do the same amount of work in the above question using only one…

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