Mast Hwa2 x Y The speed of sound in air X c Home I chegg.com x Y A certain trans

Question

Mast Hwa2 x Y The speed of sound in air X c Home I chegg.com x Y A certain transverse wave i... X c Chegg.com x o http 9713720 e a nsity of the radiation from the star is 14.8 w/m2. e E close PHY1750SP16 Signed in as wejdan abu hamees Help HW#2 Exercise 15.29 Resources previous l 4 of 6 l next Exercise 15.29 Part A At a distance of 5.00x1012 m from a star, the intensity of the radiation Assuming that the star radiates uniformly in all directions, what is the total power output of the star? from the star is 4.8 W/m2 Express your answer with the appropriate units Value Units Submit My Answers Give Incorrect, Try Again, 2 attempts remaining Your answer does not have the correct dimensions. dback Continue 11:25 AM 2/1/2016

Explanation / Answer

we know that

Intensity = P/ A

A = 4xpix R2

substituting the given values we get

P = 4.65 x 1027W

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