A string 1.50m long has a linear density u=7.50x10*kg/m. The left end of the string is held fixed and the right end passes over a pulley. The middle of the string is vibrated up and down with a frequency of 120HZ as shown to the right. A mass m hangs from the end of the string that passes over the pulley. a) Sketch the standing wave patterns possible for these conditions for the three longest possible wavelengths. b) Beside each pattern, write the string-length-to-wavelength relationship. c) Find the mass m needed at the end of the string for each standing wave pattern you sketched. 0.750m 0.750m vibrator

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Chapter1: Units, Trigonometry. And Vectors
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Need help on part c
FX-2 A string 1.50m long has a linear density
=7.50x10°kg/m. The left end of the
string is held fixed and the right end
passes over a pulley. The middle of the
string is vibrated up and down with a
frequency of 120HZ as shown to the right.
A mass m hangs from the end of the string
that passes over the pulley.
a) Sketch the standing wave patterns
possible for these conditions for the
three longest possible wavelengths.
b) Beside each pattern, write the string-length-to-wavelength relationship.
c) Find the mass m needed at the end of the string for each standing wave pattern you sketched.
0.750m
0.750m
vibrator
Answers
FX-1 7.00N
FX-2 a)---
c) 0.992kg, 0.110kg, 0.0397kg
b) L=/2, L=32/2, L=51/2
Transcribed Image Text:FX-2 A string 1.50m long has a linear density =7.50x10°kg/m. The left end of the string is held fixed and the right end passes over a pulley. The middle of the string is vibrated up and down with a frequency of 120HZ as shown to the right. A mass m hangs from the end of the string that passes over the pulley. a) Sketch the standing wave patterns possible for these conditions for the three longest possible wavelengths. b) Beside each pattern, write the string-length-to-wavelength relationship. c) Find the mass m needed at the end of the string for each standing wave pattern you sketched. 0.750m 0.750m vibrator Answers FX-1 7.00N FX-2 a)--- c) 0.992kg, 0.110kg, 0.0397kg b) L=/2, L=32/2, L=51/2
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