A steel spherical object is pulled from an oven at temperature 500C and placed on a surface in an environment at20C. Given the sphere's radius of 10cm, how long will it take to cool to 400C via blackbody radiation, which will beits primary means of losing heat? How long will it take if the radius is only 5cm? Explain the variation.

A steel spherical object is pulled from an oven at temperature 500C and placed on a surface in an environment at20C. Given the sphere's radius of 10cm, how long will it take to cool to 400C via blackbody radiation, which will beits primary means of losing heat? How long will it take if the radius is only 5cm? Explain the variation.

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Question

A steel spherical object is pulled from an oven at temperature 500C and placed on a surface in an environment at
20C. Given the sphere's radius of 10cm, how long will it take to cool to 400C via blackbody radiation, which will be
its primary means of losing heat? How long will it take if the radius is only 5cm? Explain the variation.

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