The peak intensity of sunlight arriving at the upper

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Reference no: EM13625155

The peak intensity of sunlight arriving at the upper atmosphere of the Earth is around 1300W/m². The Earth is situated roughly 55 x 10⁶ km from the Sun. The radius of the Earth is around 6000 km.

a) Determine how much total energy/second arrives at the Earth from the Sun.

b) How much total energy per second is emitted by the Sun?

c) Using (b), determine the intensity (W/m²) of sunlight at the surface of the Sun and then, using an equation from last semester, determine the temperature of the Sun (assuming it is a perfect blackbody.)

d) What is the ratio of the pressure of the sunlight pushing on the Earth to the gravitational pull of the Sun on the Earth?

Reference no: EM13625155

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