Two parallel disks which are separated by a distance of 25 cm are enclosed in a large evacuated chamber that is at -250 c temperature. the larger disk is 50 cm in diameter, is at 800 c, and has an emissivity of 0.6. the smaller disk is 25 cm in diameter, is at 400 c temperature, and has an emissivity of 0.4. calculate the radiative power lost by the large disk. hint: note that the disks lose heat from both sides.

the warning light flashes for a second or two when the engine starts. if it stays on, there's must be something wrong with the coolant. you should never dare to continue driving when the light is on. pull over as soon as possible and shut the engine off.

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you cant but you can report the sender

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im xavier btw but i go by x

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31

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