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A solid cylinder of radius r₁ = 2.2 cm, length h₁
5.3 cm, emissivity 0.80, and temperature 36°C is
suspended in an environment of temperature
64°C. (a) What is the cylinder's net thermal
radiation transfer rate P₁? (b) If the cylinder is
stretched until its radius is r2 = 0.59 cm, its net
thermal radiation transfer rate becomes P₂. What
is the ratio P2/P1?
(a) Number
i
(b) Number i
Units
Units
î

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