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(10%) Problem 9: A baseball of radius r = 5.7 cm is at room temperature T = 22.6 C. The baseball has emissivity of ε = 0
Posted: Wed Jul 06, 2022 11:23 am
by answerhappygod
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(10%) Problem 9: A baseball of radius r = 5.7 cm is at room temperature T = 22.6 C. The baseball has emissivity of ε = 0.87 and the Stefan-Boltzman constant is o = 5.67 × 10-8 J/(s·m².K4). 50% Part (a) Say this ball is now moved to a region approximating T=0 K (space, for instance). Select an expression for the power radiated by the baseball, P₁, right after it's moved from room temperature to 0 K. P= 4лεor²T4 ✓ Correct! 50% Part (b) What is the power in W? P = || Grade Summary Deductions Potential 10