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Consider a bright star in our night sky. Assume its distance from Earth 66.2 light-years (ly) and its power output is 4.00 × 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 66.2 light-years (ly) and its power output is 4.00 × 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

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Consider a bright star in our night sky. Assume its distance from Earth is 66.2 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
Transcribed Image Text:Consider a bright star in our night sky. Assume its distance from Earth is 66.2 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
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