PHYS_111_Hill_m87rich_Exam_3_Fall_2005

PHYS_111_Hill_m87rich_Exam_3_Fall_2005 - PHYSICS I 1 I EXAM...

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PHYSICS I I1 EXAM 3 FALL 2005 37. A 0.02 kg mass is attached to a massless spring as shown to the right and vibrates with simple harmonic motion with an amplitude of 5.0 cm. The spring constant is 300 Nlm. What is the speed of the mass when it is 2.0 cm from its equilibrium position? (a) 2.1 rnls (b) 3.2 rnls (c) 4.8 rnls @) 5.6 ml$ (e) 6.8 rnls 38. A kg mass on the end of a horizontal spring is vibrating with simple harmonic motion and can be described by the equation x = 0.3 cos (5.0 t). What is the period of the vibration? (a) 0.3 s@) 1.3 s>(c) 2.8 s (d) 4.2 s (e) 5.0 s 39. A plot of height vs time for a sinusoidal sound wave traveling in air is shown in the figure to the right. What is the wavelength of this wave? (a) 14 cm (b) 18 cm (d) 34 cm (e) 40 cm
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40. Sound waves are and generally travel - as the density of the medium through which the sound wave travels increases. (a) transverse, faster 1 longitudinal, fast9 (c) transverse, slower longitudinal, slower 41. A guitar string has a length of 80 cm and a mass of 5.0 grams. The player tunes the string so that the second harmonic produces sound with a frequency of 600 Hz. What is the required tension in that guitar string?
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This note was uploaded on 02/11/2012 for the course PHYSICS 111 taught by Professor B during the Summer '08 term at Iowa State.

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PHYS_111_Hill_m87rich_Exam_3_Fall_2005 - PHYSICS I 1 I EXAM...

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