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May 28, 2015

Homework Help: Physics

Posted by Daniel on Friday, March 11, 2011 at 3:03pm.

Some spacecraft design uses a solar sail made of aluminized plastic. As sunlight reflects off the sail, radiation pressure drives the spacecraft outward away from the sun.

a. If the sail material has a density of 700.0 kg/m3, what is the maximum thickness of the sail for which the force due to radiation pressure exceeds the gravitational force on the sail?

b. If the collector's area is 2e6 m^2. its thickness is 1 μm, and the craft carries a 100.0 kg payload, what is its acceleration at the radius of the Earth's orbit?

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