1. Consider a 20-cm-diameter spherical ball at 800 K suspended in air as shown in the figure. Assuming the ball closely determine (a) the total blackbody emissive power, (b) the total amount of radiation emitted by the ball in 4 min, and (c) the spectral blackbody emissive power at a wavelength of 3 mm. approximates a blackbody, -800 K _20 cm Ball
1. Consider a 20-cm-diameter spherical ball at 800 K suspended in air as shown in the figure. Assuming the ball closely determine (a) the total blackbody emissive power, (b) the total amount of radiation emitted by the ball in 4 min, and (c) the spectral blackbody emissive power at a wavelength of 3 mm. approximates a blackbody, -800 K _20 cm Ball
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Subject: Thermodynamics and Heat Transfer
Transcribed Image Text:1. Consider a 20-cm-diameter spherical ball at 800 K
suspended in air as shown in the figure. Assuming
ball closely approximates a blackbody,
determine (a) the total blackbody emissive power,
(b) the total amount of radiation emitted by the ball
in 4 min, and (c) the spectral blackbody emissive
power at a wavelength of 3 mm.
the
- 800 K
_20 cm"
Ball
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