a. Intensitas
I = e.σ.T⁴
I = 1. 5,67.10⁻⁸. (1727+273)⁴
I = 907200 watt/m²
b. Daya yg dipancarkan
I = P/A .... A : luas permukaan bola.
P = I.A = I. 4πR²
P = 907200.(4π.5.10⁵.10³)²
P = 3,6. 10²⁵ watt
c. ENERGI DLM SEHARI
W = P. t
W = 3,6.10²⁵. 24. 60. 60
W = 3,11. 10³⁰ J
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a. Intensitas
I = e.σ.T⁴
I = 1. 5,67.10⁻⁸. (1727+273)⁴
I = 907200 watt/m²
b. Daya yg dipancarkan
I = P/A .... A : luas permukaan bola.
P = I.A = I. 4πR²
P = 907200.(4π.5.10⁵.10³)²
P = 3,6. 10²⁵ watt
c. ENERGI DLM SEHARI
W = P. t
W = 3,6.10²⁵. 24. 60. 60
W = 3,11. 10³⁰ J