28_InstSolManual_PDF_Part15

# 28_InstSolManual_PDF_Part15 - 3 10 8 m / s 2 1 0.0032 3 10...

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Reflect: We can also find from conservation of momentum. Let be the direction the photon is traveling initially. Then conservation of the x component of momentum gives which is the same result as computed from energy conservation. 28.60. Set Up: Solve: (a) The largest is for and (b) If then and 28.61. Set Up: Electrical power is VI . Solve: (a) (b) The energy in the electron beam that isn’t converted to x rays stays in the target and appears as thermal energy. For and The temperature rises at a rate of Reflect: The target must be made of a material that has a high melting point. 28.62. Set Up: Conservation of energy applied to the collision gives For a photon, Solve: (a) (b) The photon has energy 319 eV, so 28.63. Set Up: For a photon, Solve: Reflect: This photon is in the infrared region of the electromagnetic spectrum. l5 hc E 5 1 6.63 3 10 2 34 J # s 21 3.00 3 10 8 m / s 2 6.21 3 10 2 21 J 5 3.20 3 10 2 5 m 5 32.0 m m. E 5 3 2 1 1.38 3 10 2 23 J / K 21 300 K 2 5 6.21 3 10 2 21 J. k 5 1.38 3 10 2 23 J / K. T 5 27°C 5 300 K. E 5 hc l . l5 hc E 5 1 4.136 3 10 2 15 eV # s 21 3.00 3 10 8 m / s 2 319 eV 5 3.89 3 10 2 9 m 5 3.89 nm. v e 5 Å 2 K e m 5 Å 2 1 5.11 3 10 2 17 J 2 9.11 3 10 2 31 kg 5 1.06 3 10 7 m / s. 5 5.11 3 10 2 17 J 5 319 eV K e 5 1 6.63 3 10 2 34 J # s 21 3.00
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Unformatted text preview: 3 10 8 m / s 2 1 0.0032 3 10 2 9 m 3 0.1100 3 10 2 9 m 43 0.1132 3 10 2 9 m 4 2 K e 5 hc 1 1 l 2 1 l r 2 5 hc 1 l r 2 l l r l 2 . E 5 hc l . hc l 5 hc l r 1 K e . 32.9 K / s. D T 5 Q mc 5 1.07 3 10 3 J 1 0.250 kg 21 130 J / kg # K 2 5 32.9 K. Q 5 1 0.990 2 VI 1 1.00 s 2 5 1.07 3 10 3 J t 5 1.00 s, 1 0.010 2 VI 5 1 0.010 21 18.0 3 10 3 V 21 60.0 3 10 2 3 A 2 5 10.8 W 5 10.8 J / s Q 5 mc D T . E 5 hc l 5 1 4.136 3 10 2 15 eV # s 21 3.00 3 10 8 m / s 2 4.85 3 10 2 12 m 5 2.56 3 10 5 eV 5 0.256 MeV. l 5 4.85 3 10 2 12 m. l 5 Dl max l r 5 2 l , Dl max 5 4.85 pm. f 5 180° Dl h mc 5 2.426 3 10 2 12 m 5 2.426 pm. Dl 5 h mc 1 1 2 cos f 2 . v 5 8.0 3 10 6 m / s, v 5 h m 1 1 l 1 1 l r 2 5 h m 1 l 1 l r ll r 2 5 1 6.63 3 10 2 34 J # s 9.11 3 10 2 31 kg 21 0.1849 3 10 2 9 m 1 0.1800 3 10 2 9 m 3 0.1849 3 10 2 9 m 43 0.1800 3 10 2 9 m 4 2 . h l 5 2 h l r 1 m v . 1 x v Photons, Electrons, and Atoms 28-15...
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## This note was uploaded on 03/06/2009 for the course PHYS 114 taught by Professor Shoberg during the Spring '07 term at Pittsburg State Uiversity.

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