An asteroid of mass 10 kg is moving towards a space station at 1ms-. It is...
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An asteroid of mass 10³ kg is moving towards a space station at 1ms-¹. It is proposed to stop it by firing a 1 MW laser at it. For how long must the laser be fired? You may assume that the surface of the asteroid is perfectly reflective, all photons are incident perpendicular to the surface of the asteroid, and a photon's momentum is related to its energy by p= E, where c = 3 × 108 ms-¹ is the speed of light. A C D E 3 x 10's 3 x 10¹¹ s 3 x 10-³ s B 7.5 x 10¹s 1.5 x 105 s [2] An asteroid of mass 10³ kg is moving towards a space station at 1ms-¹. It is proposed to stop it by firing a 1 MW laser at it. For how long must the laser be fired? You may assume that the surface of the asteroid is perfectly reflective, all photons are incident perpendicular to the surface of the asteroid, and a photon's momentum is related to its energy by p= E, where c = 3 × 108 ms-¹ is the speed of light. A C D E 3 x 10's 3 x 10¹¹ s 3 x 10-³ s B 7.5 x 10¹s 1.5 x 105 s [2]
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Related Book For
University Physics with Modern Physics
ISBN: 978-0321696861
13th edition
Authors: Hugh D. Young, Roger A. Freedman, A. Lewis Ford
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