Square Forged
September 12th, 2008
Square Forged
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3. A thin square steel plate, 10 cm on a side, is heated in a black-smith's forge to a temperature of 800 oC.?
3. A thin square steel plate, 10 cm on a side, is heated in
a black-smith's forge to a temperature of 800
oC. If the
emissivity is 0.60, what is the total rate of radiation of
energy?
rate of radiation
= stephan's constant x area x t^4 x emissivity
temp in kelvin scale
area in m^2
stephan constant is some what 5.67 x 10 ^-8
your answer comes out to be 4.98 x 10^-2 J pre second