Question: (a) If the laser in Problem 64 shines its light on a perfectly absorbing surface, how much energy does the surface receive in 12 s?

(a) If the laser in Problem 64 shines its light on a perfectly absorbing surface, how much energy does the surface receive in 12 s?
(b) What is the radiation pressure exerted by the beam?
In Problem 64
A 0.50-mW laser produces a beam of light with a diameter of 1.5 mm.

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