Consider a bright star in our night sky. Assume its distance from Earth is 82.9 light-years (ly) and its power output is 4.00 x 1028 w, about 100 times that of the Sun.(a) Find the intensity of the starlight at the Earth.|nw/m²(b) Find the power of the starlight the Earth intercepts. One light-year is the distance traveled by the light through a vacuum in one year. (The radius of Earth is 6.37 x 106 m.)MW

(a) Intensity of star light at earth 5.17 nw/m2 (b) power of star light earth intercepts 0.66 MW

Consider a bright star in our night sky. Assume its distance from Earth is 82.9 light-years (ly) and its power output is 4.00 x 1028 w, about 100 times that of the Sun. (a) Find the intensity of the starlight at the Earth. nw/m2 (b) Find the power of the starlight the Earth intercepts. One light-year is the distance traveled by the light through a vacuum in one year. (The radius of Earth is 6.37 x 10° m.) MW

Consider a bright star in our night sky. Assume its distance from Earth is 82.9 light-years (ly) and its power output is 4.00 x 1028 w, about 100 times that of the Sun. (a) Find the intensity of the starlight at the Earth. nw/m2 (b) Find the power of the starlight the Earth intercepts. One light-year is the distance traveled by the light through a vacuum in one year. (The radius of Earth is 6.37 x 10° m.) MW

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

Chapter24: Electromagnetic Waves

Section: Chapter Questions

Problem 26P

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