Physics, 18.01.2020 03:31 tbenjamin1299
Part 1 - basic equations
the basic equation connecting wave speed v, wavelength ? and frequency f is
v = f?
the wave speed in a stretched string depends on the string's tension t and mass per unit length ? (also called the "linear mass density") with the equation
v =
sqrt1a. gif t/?
1. if the string's length is l, what is the fundamental wavelength ? 1?
(i already got this answer, it is 2l)
2. derive a formula for the speed of the wave in terms of the fundamental frequency f1 and the string length l.
v=
3. derive a formula for linear mass density ? in terms of the wave speed v and string tension t.
? =
assume you have the following intermediate (i. e., significant figures may be incorrectly stated) experimental results :
l = 0.812 ? 0.019 m
f1 = 29.02 ? 1.45 hz
t = 5.08 n (exact)
4. what is the linear mass density of the string (without uncertainty, units requred)?
? =
5. use the above results to calculate the fractional uncertainty in the wave speed ? v:
6. use the above results to calculate the fractional uncertainty in the linear mass density ? ? :
7. then calculate the absolute uncertainty in the linear mass density ? ? :
8. finally, state the linear mass density with its uncertainty using correct significant figures (include units):
Answers: 3
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Part 1 - basic equations
the basic equation connecting wave speed v, wavelength ? and...
the basic equation connecting wave speed v, wavelength ? and...
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