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Square root of (4^2 + 4^2) = 4*squareRoot(2)
everyone would die, earth needs sunlight for all living things to survive
Answer:
A circuit which has a battery in it will not allow electricity to flow through it. A device called a switch can be used to complete a circuit so that other devices can be switched on or off.
Explanation:
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The emissivity of the earth is 0.5
The emissivity of the earth is calculated by the Stefan's law
