Suppose that the mirror described in Part A is initially at rest a distance R away from the sun. What is the critical value of a
rea density for the mirror at which the radiation pressure exactly cancels out the gravitational attraction from the sun?
1 answer:
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Answer:
19320 K
Explanation:
The temperature of a star is related to its peak wavelength by Wien's displacement law:
where
T is the absolute temperature at the star's surface
is Wien's displacement constant
is the peak wavelength
Here we have
Substituting into the equation, we find