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# Previous Practice Exam 1 [ - 1 PHYSICS 6 HOUR EXAM 1 SPRING...

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1 PHYSICS 6 HOUR EXAM 1 SPRING 2003 NAME___________________________________________ This is a closed book, closed notes exam. You may use calculators. Make sure you show all your work! You will get partial credit for correct intermediate steps. Useful data and equations: Avogadro's Number: No = 6.0 x 10 23 1 Mole (of substance with atomic mass number [or atomic weight] A) = A grams, which contains No units speed or velocity = v = distance/time or v = d/t acceleration = change of velocity over time = v / t acceleration due to gravity = g = 9.8 m/s 2 d = (1/2)gt 2 Force = mass × acceleration Work = force × distance Power = Energy/time Classical Momentum = p = m u (m = mass, u = velocity) Classical Kinetic Energy = 1/2 mv 2 Velocity of light: c = 3 x 10 8 meter/sec Relativity relations: Rest Energy = m 0 c 2 Units: Mass: 1 Kilogram Energy: 1 J(oule) = 1 Kg m 2 / sec 2 ; 1 electron Volt (eV) = 1.6x10 -19 J Power: 1 Watt = 1 J/s Grades: points /possible points I /80 II /40 (each part is 10 points) III /40 (each part is 10 points) Total: /160 time dilation: t = t 0 1- v 2 c 2 length contraction: L = L 0 1- v 2 c 2 velocity addition u = u +V 1+ V u c 2 momentum: p = m 0 u 1- u 2 c 2 energy: E = m 0 c 2 1- u 2 c 2 = K+m 0 c 2

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Previous Practice Exam 1 [ - 1 PHYSICS 6 HOUR EXAM 1 SPRING...

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