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# e1f04 - Name ME 513 Exam 1 Fall 2004 Note To help you...

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Name: ______________________________ ME 513 Exam 1 – Fall 2004 --- 12/3/2004 Note: To help you complete this exam, you may refer to your class notes, your homework, solutions provided to you and other material distributed as part of the course, but you may not refer to the text (Kinsler, Frey, Coppens and Sanders) or to any other acoustics text Problem 1: ____________/20 Problem 2: ____________/20 Problem 3: ____________/20

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Problem 1. (i) What is sound? (ii) The input impedance of a SDOF system is j (5 ω - 12/ ω ). What is the natural frequency of the system? (iii) In the expression e j ω t , ω is the rate of increase of __________________ with _________________ . (iv) To predict the transient motion of a SDOF system, what two conditions must be specified? (v) In a SDOF system, the “damped natural frequency” is _____________________ than the “undamped natural frequency”. (vi) An impedance of the form – j 17/ ω is referred to as a ____________________ impedance.
(vii) What is transverse wave motion? (viii) The natural frequencies of a tensioned string are found by solving the _________________________ equation.

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