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Radiation Pressure

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Radiations

An earth- orbiting satellite has a solar energy collecting panel with total area 5 m^2 If solar radiations are perpendicular and completely absorbed, the average force associated with the radiation pressure is (Solar constant = 1.4 k Wm^(-2) )

If P represents radiation pressure , C represents the speed of light , and Q represents radiation energy striking a unit area per second , then non - zero integers x, y, z such that P^(x) Q^(y) C^(z) is dimensionless , find the values of x, y , and z .

The sun delivers about 1.4kW m^(-2) of electromagnetic flux to the earth's surface. Calculate A. the total power incident on a roof of dimensions 8mxx20 m. B. the solar energy in joules incident on the roof in 1h. C.the radiation pressure and force assuming the roof to be a perfect absorber.