Estimating Photon Escape Time from Center of Sun

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swickey
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I have a question that I can't figure out. In the Sun, it takes several hundred thousand years for a photon released in the core to reach the surface. Use the speed of light and the radius of the sun to estimate the escape time for a photon from the center of the sun if there were no interaction.

The suns radius is 696,000km and light travels at 3 x10c/s...this is where I get lost. Can anyone help me?
 
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[tex]S=\frac{D}{T}[/tex]

It's just a case of plugging the numbers into the equation.Russ would this qualify as a homework question?