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Calculate the temperature of a planet. A star has a surface temperature of 4000K and a...

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Physics

Calculate the temperature of a planet. A star has a surfacetemperature of 4000K and a radius of R = 8 × 108 m It has a rocky,airless planet orbiting it at a distance of 1.0×1011 meters. Theplanet has a radius of 5.0 × 106 m. We will estimate 1 for allobjects. (a) What is the total power output of the star?

(b) What is the power incident on each square meter at distanceto the planet (i.e. on an imaginary sphere).

(c) How much power is absorbed by the planet? (Assume the planetis black. Use the fact that the planet looks like a disk.)

(d) In equilibrium, Pin = Pout. How much power does the planetradiate per square meter of surface area of the planet?

(e) What is the temperature of the planet? (Should humans try tolive there?)

Answer & Explanation Solved by verified expert
4.1 Ratings (650 Votes)
what does this statement mean We will estimate 1 for allobjects Ea Area of star 4pir2Area 4 pi8e82Area 8042e18 m2The flux is    See Answer
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