A solid cylinder of radius r=2.6 crm, length h= 4.8 cm, emissivity 0.79, and temperature 26°C is suspended in an environment of temperature 63°C.ja) What is the cylinder's net thermal radiation transfer rate P,? (b) If the cylinder is stretched until its radius is r2 =0.50 cm, its net thermal radiation transfer rate becomes P2. What is theratio P2/P1?

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Chapter2: The Kinetic Theory Of Gases
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A solid cylinder of radius r=2.6 crm, length h =4.8 cm, emissivity 0.79, and temperature 26°C is suspended in an environment of
temperature 63°C. ja) What is the cylinder's net thermal radiation transfer rate P?(b) If the cylinder is stretched until its radius is ra
=0.50cm, its net thermal radiation transfer rate becomes P2. What is the ratio P2/P1?
ja) Number
i
Units
(b) Number
Units
Transcribed Image Text:A solid cylinder of radius r=2.6 crm, length h =4.8 cm, emissivity 0.79, and temperature 26°C is suspended in an environment of temperature 63°C. ja) What is the cylinder's net thermal radiation transfer rate P?(b) If the cylinder is stretched until its radius is ra =0.50cm, its net thermal radiation transfer rate becomes P2. What is the ratio P2/P1? ja) Number i Units (b) Number Units
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