Homework Answers
wave velocity in string
v = (T / (M/L))^0.5
here mass will affect directly
=> velocity affects by a factor of 1/(3)^0.5 = 0.58 OPTION (b)
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5. Imagine a string that is fixed at both ends (e.g. a guitar string). When plucked, the string forms a standing wave. The vertical displacement u of the string varies with position r and time t. Suppose u(x,t) = 2 sin(nx) sin(mt/2), for 0 x 1 and t 0. Convince yourself of the following: If we freeze the string in time, it will form a sine curve. Alternatively, if we instead focus on a single position, we will see the...
Jennifer is using a tuning fork to tune her fifth guitar string, which should be at a frequency of 110 Hz, or note A2 in music terms. When she rings the tuning fork and plucks her guitar string, she hears 8 beats/s. Note: parts (a) and (b) require absolute accuracy. Your answer must be exactly correct-not just within 5% (a) What are the two possible frequencies of Jennifer's guitar string? fmAx Number Units Number Units min (b) When Jennifer loosens...
Jennifer is using a tuning fork to tune her fifth guitar string, which should be at a frequency of 110 Hz, or note A2 in music terms. When she rings the tuning fork and plucks her guitar string, she hears 8 beats / s. Note: parts (a) and (b) require absolute accuracy. Your answer must be exactly correct--not just within 5%. (a) What are the two possible frequencies of Jennifer's guitar string? Fmax = Number Units f min = Number...
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