The Sun radiates like a perfect blackbody with an emissivity of exactly 1.(a) Calculate the surface temperature of the Sun, given it is a sphere with a 7.00 108 m radius that radiates 3.80 1026 W into 3 K space._________________ K(b) How much power does the Sun radiate per square meter of its surface? __________W/m2(c) How much power in watts per square meter is this at the distance of the Earth, 1.50 1011 m away? (This number is called the solar constant.)_________________ W/m2

Radius of Sun Rs = 7×108 m emissivity e = 1 Power P = 3.8×1026 W Distance of the Sun from earth is D…

Answered: The Sun radiates like a perfect…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter17: Energy In Thermal Processes: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 64P

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The Sun radiates like a perfect blackbody with an emissivity of exactly 1.

(a) Calculate the surface temperature of the Sun, given it is a sphere with a 7.00 10⁸ m radius that radiates 3.80 10²⁶ W into 3 K space.
_________________ K

(b) How much power does the Sun radiate per square meter of its surface?
__________W/m²

(c) How much power in watts per square meter is this at the distance of the Earth, 1.50 10¹¹ m away? (This number is called the solar constant.)
_________________ W/m²

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