A sphere with a diameter of 70 cm is held at a temperature
A sphere with a diameter of 70 cm is held at a temperature of 290°C and is radiating energy. If the intensity of the radiation detected at a distance of 2.0 m from the sphere's center is 102 W/m2, what is the emissivity of the sphere?
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A sphere with a diameter of 70 cm is held at a temperature of 290°C and is radiating energy. what is the emissivity of the sphere
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