A certain star's power output is 2.9 x 1026 W. Assuming an ideal radiator with e = 1, calculate its radius in km if its temperature is 5,720 K. The Stefan-Boltzmann constant is 5.67 x 10-8 W/(m².K4).

A certain star's power output is 2.9 x 1026 W. Assuming an ideal radiator with e = 1, calculate its radius in km if its temperature is 5,720 K. The Stefan-Boltzmann constant is 5.67 x 10-8 W/(m².K4).

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.

Question

A certain star's power output is 2.9 x 1026 W. Assuming an ideal radiator with e = 1,
calculate its radius in km if its temperature is 5,720 K. The Stefan-Boltzmann constant
is 5.67 x 10-8 W/(m².K4).
R =
>
_km
616,612 margin of error +/- 1%

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