quiz1 - PHYSICS 2D QUIZ 1 SPRING QUARTER 2005 PROF. HIRSCH...

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Unformatted text preview: PHYSICS 2D QUIZ 1 SPRING QUARTER 2005 PROF. HIRSCH APRIL 8, 2005 Formulas: Time dilation: t = t ' 1 v 2 / c 2 c = 3 10 8 m / s Length contraction: L = L p 1 v 2 / c 2 = L p Lorentz transformation : x ' = ( x vt ) x = ( x ' + vt ') y'= y = 1 1 v 2 / c 2 y = y' z'= z z = z' t ' = ( t vx / c 2 ) t = ( t ' + vx ' / c 2 ) Relativistic Doppler shift : f obs = 1 + v / c 1 v / c f source (approaching) Momentum: p = mu ; = 1 1 u 2 / c 2 Kinetic energy: E k = ( 1) mc 2 ( 1eV =1.6 10-19 J) Total energy: E = mc 2 Rest energy: E = mc 2 E = p 2 c 2 + m 2 c 4 Electron: m e = 0.511 MeV / c 2 Proton: m p = 938.26 MeV / c 2 Neutron: m n = 939.55 MeV / c 2 Atomic mass unit : 1 u = 931.5 MeV / c 2 Justify all your answers to all problems Problem 1 (15 points) 0.6c A 0.6c B Spaceships A and B pass each other traveling in opposite directions. They both move at speed 0.6c with respect to the ground. Passengers in each spaceship measure the length ofspeed 0....
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quiz1 - PHYSICS 2D QUIZ 1 SPRING QUARTER 2005 PROF. HIRSCH...

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