Question

The Kelvin temperature of an object is T1 and the object radiates a certain amount of energy per second. The Kelvin temperature of the object is then increased to T2, and the object radiates 81 times as much energy per second as it radiated at the lower temperature. What is the ratio T2/T1?
energy is proportional to temp to the forth power.

fourth root of 81

3^4=81

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