exam1b.s08 - La Sierra University Department of Physics...

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La Sierra University Department of Physics PHYS 233a General Physics 3 Spring 2008 Exam 1 name_____________________________ 2008 April 17 Version B E. A. Karlow, Instructor Directions: This is a one-period test, closed notes, closed book; but you may use your calculator and formulas below. Be sure to write your answers in the spaces provided. Show all work on these pages; do not use scratch paper. Points for each question are shown in square brackets. Test total is 100, but there are 5 points bonus. PHYS 233a Exam 1 page 1 of 6 04/18/10 ( 29 2 2 2 2 1 2 x A m k v kx PE x x m k a kx F e - ± = = - = - = - = ϖ 10 10 2 10log 10 4 , 1,2,3,. .. 2 , 1,3,5,. .. 4 ref ref L L S s n n I I or I I P I R v v f f v v nv f wheren L nv f wheren L β π = = = + = + = = = = 2 2 1 2 20.1 273 T m L T and k g f f T v f F B v and v T λ μ ρ = = = = = = + ( 29 ( 29 2 2 ( ) cos ( ) sin ( ) sin ( ) cos ( ) cos ( ) sin 2 2 ( , ) cos ( , ) sin x t A t or x t A t v t A t or v t A t a t A t or a t A t y x t A x vt or y x t A x vt = = = - = = - = - = - = - How clearly the sky reveals God’s glory!   How plainly it shows what he has done! …  No speech or words are used, no sound is heard;  yet their voice goes out to all the world  and is heard to the ends of the earth.
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____ 1. Which of the following will decrease the wave speed in the medium indicated? [3] A. increase the Young’s modulus of an aluminum rod
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exam1b.s08 - La Sierra University Department of Physics...

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