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rginia Community College Take Test: Quiz1-NV280.PNY.232.002L.SP19 Question Completion Status: QUESTION 3 A string is vibrating in its 4th harmonic and is described by the following equation: y(x, t) = 3.4 (cm)sin | (0.05 rad) x | sin! (40 ) t What is the length of the string? O 102 cm cm 197 cm 229 cm 251 cm. QUESTION 4 A 2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kN. V frequency of the fundamental mode of vibration of this wire?
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