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O 94% CH Sun Apr 10 10:54:29 PM a E Chrome File Edit View History Bookmarks People Window Help A Josh Chapter 17 Linear S C My Internships I Che C Physics question I Ch google maps Google c www.webassign.net 13047796 /web/Student/Assignment-Responses/last?dep App Bookmarks Apple YouTube home Watch Live Sports E O tech Destiny LFG.Net l The faculty.pnc.edu/pte Screen Shot PM 2016-04...0.08 PM 2. C+ -12 points CJ10 17.P.028 My Notes Ask Your Teacher Screen Shot A string that is fixed at both ends has a length of 2.23 m. When the string vibrates at a frequency of 78.9 H z, a standing wave with Seven PM 2016-04...0.20 PM loops is formed s the wave leng h of the waves that travel on the string? a) Wha o your (b) What is the speed of the waves? Screen Shot 2 PM 2016-04...0.26 PM m/s ct you a (c) What is the fundamental frequency of the string? Hz Additional Materials Screen Shot PM 2016-04...0.30 PM Section 17.5 his Screen Shot PM 2016-04...0.40 PM 3, C+ -l2 points CJ10 17.P.033 My Notes Ask Your Teacher A string has a linear density of 7.20 x 10 3 kg/m and is under a tension of 215 N. The string is 2.2 m long, is fixed at both ends, and is vibrating in the standing wave pattern shown below in the drawing Screen Shot PM 2016-03...4.06 PMExplanation / Answer
2) if 7 loops are formed in a standing wave then
total length = 7/2*wavelength
wavelength = 2/7*l = 2/7*2.23 = 0.64 m
b) velocity = wavelength*frequency = 0.64*78.9 = 50.49 m/sec
c) fundamental frequency f = v/2l = 50.49/2*2.23 = 11.3 Hz
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