A sonometer werie of length 1.5m is made stell the tensio in it produces an ealstic strain of 1%
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Microstructural characterization of cermet-steel interface in rock drilling tool ..... A hole with a diameter of 1.5 m and a depth of 7.7 m requires 3 to 7 sets of ... A total length of nearly 1100 m was drilled at rates ranging from 0.4 m/h to 1 m/h, .... which have made difficult the determination of anisotropic elastic parameters of the ...
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f = 1/(2L)*√(T)/(AD) and Y = (TL)/(A ΔL)
From above two expressions
f = 1/(2L)√(YΔL)/(LD)
The correct answer is 178.2 Hz
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