Exam_1 - Exam 1 Physics 172 Summer 2010 Purdue University...

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1 Exam 1 Physics 172 Summer 2010 Purdue University Print your name__________________________________________ Additional pages for scratchwork are are available upon request. For the hand written problem, please remember that you are demonstrating your ability to write-up and solve a physics problem. You must provide the complete reasoning and solution as requested in the problem, presenting it in a neat and organized manner . Keep in mind that that the write-up is more important than the answer. Additionally: Correct answers without adequate explanations or with incorrect reasoning will be counted as wrong. Cross out anything you do not want us to read. Make explanations complete, but brief. Include diagrams where appropriate to explain your work. Show what goes into a calculation, not just the final number. Give standard SI units with your results. Use correct vector notation. Your work must be legible and clear.
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2 Exam 1 Equation Sheet () n R v p dt p d p F r r q q F s k F F F r r m Gm F v m p o by on elect spring i i net by on grav ˆ ˆ ˆ 4 1 ˆ 21 2 21 2 1 1 2 , 21 2 21 2 1 1 2 , r r r r r r r r r r = = = Δ = = = = πε γ d v f T m k sound s ω π = = = = 2 2 , T s i F k stress A Y L strain d L ≡= = Δ ------------------------------------------- CONSTANTS --------------------------------------------- 2 11 34 2 2 23 9 19 2 19 8 6.7 10 9.8 1.05 10 1 1.38 10 9 10 1.6 10 4 11 . 6 1 0 3 1 0 electron o Nm N Gg J s kg kg JN m kq C KC m eV J c s = = × = × = × = × h electron 93 1 k g me =− proton neutron hydrogen atom 1.7 27 kg mm m e ≈≈ M Earth = 24 61 0 × kg Radius of Earth = 6 6.4 10 × m M Moon = 22 71 0 × kg Distance from Earth to Moon = 8 41 0 × m M Sun = 30 21 0 × kg Distance from Earth to Sun = 11 1.5 10 × 1 u = 1.7e-27 kg Avagadro’s Number = 6 x 10 23 molecules/mole Typical atomic radius r 10 -10 m
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3 Problems 1-4:
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This note was uploaded on 10/28/2010 for the course PHYS 17200 taught by Professor Gaboracsathy during the Fall '09 term at Purdue University-West Lafayette.

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Exam_1 - Exam 1 Physics 172 Summer 2010 Purdue University...

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