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I've never taken physics before and this is my first physics class in university.
A string, 2.0 meters in length, is fixed at both ends and tightened until the wave
speed is 78 m/s. What is the frequency of the standing wave shown in the figure?
v=nv/2L because it is fixed at both ends
so f = (78m/s)/(2)(2)
and I get 19.5 Hz but that's not the right answer. It's too small. Help please?
Homework Statement
A string, 2.0 meters in length, is fixed at both ends and tightened until the wave
speed is 78 m/s. What is the frequency of the standing wave shown in the figure?
Homework Equations
v=nv/2L because it is fixed at both ends
The Attempt at a Solution
so f = (78m/s)/(2)(2)
and I get 19.5 Hz but that's not the right answer. It's too small. Help please?