Answered: A certain star is 15.7 million…

A certain star is 15.7 million light-years from Earth. The intensity of the light that reaches Earth from the star is 3.40 x 10-21 W/m². At what rate does the star radiate EM energy? 1026 W

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter16: Waves

Section: Chapter Questions

Problem 79P: A device called an insolation meter is used to measure the intensity of sunlight. It has an area of...

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Question

A certain star is 15.7 million light-years from Earth. The intensity of the light that reaches Earth from the star is 3.40 × 10-21 W/m². At
what rate does the star radiate EM energy?
x 1026 W

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