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30 Joules of energy enter a light bulb. 20 joules of energy are transformed into light; how much energy is dissipated as heat?
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30 Joules of energy enter a light bulb. 20 joules of energy are transformed into light; how much energy is dissipated as heat?

User Marianboda
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Answer: 10 Joules will be dissipated as heat.
User Nick Street
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