p34_022 - 22. (a) The radiation pressure produces a force...

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22. (a) The radiation pressure produces a force equal to F r = p r ( πR 2 e )= µ I c ( 2 e ) = π (1 . 4 × 10 3 W / m 2 )(6 . 37 × 10 6 m) 2 2 . 998 × 10 8 m / s =6 . 0 × 10 8 N . (b) The gravitational pull of the Sun on Earth is F grav = GM s M e d 2 es = (6 . 67 × 10 11
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