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X-Rays of Energy 2

question 7

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X-rays of energy 2.9 × 104 eV are scattered by a free stationary electron through an angle of 135°. What is the energy of the scattered x-rays, in electron volts? (mel = 9.11 × 10-31 kg, e = - 1.60 × 10-19 C, h = 6.626 × 10-34 J ∙ s, c = 3.00 × 108 m/s, 1 eV = 1.60 × 10-19 J)


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Black Power Ideologies

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