Completely Lost in this Physics Problem Sinusoidal transverse waves

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Homework Help Overview

The discussion revolves around a physics problem involving sinusoidal transverse waves on a string, specifically focusing on wave speed, frequency, wavelength, and tension. The original poster presents a wave equation and seeks assistance in solving multiple parts of the problem.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the relationship between frequency and period, with one noting the formula f=1/T. There is a request for clarification on how to determine the period from the given wave equation. Others express confusion about where to begin and seek guidance on the problem-solving process.

Discussion Status

Some participants are attempting to engage with the problem by referencing relevant equations and concepts, while others are expressing uncertainty about their understanding and the steps needed to proceed. Guidance has been offered regarding the interpretation of the wave equation, but no consensus has been reached on the specific solutions to the problem.

Contextual Notes

Participants are encouraged to show their work to facilitate assistance, indicating a collaborative approach to problem-solving. There is an acknowledgment of the need for initial effort from the original poster to receive help.

cahardy86
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A sinusoidal wave is traveling on a string with speed 10.00 cm/s. The displacement of the particles of the string at x = 20 cm is found to vary with time according to the equation y = (5.0 cm) sin[16.0 - (8.0 s-1)t]. The linear density of the string is 7.0 g/cm.
(a) What is the frequency of the wave?
s-1
(b) What is the wavelength of the wave?
cm

(c) Give the general equation giving the transverse displacement of the particles of the string as a function of position and time.
y(x,t) = (5.0 cm) sin[( cm-1)x - ( s-1)t]

(d) Calculate the tension in the string.
 
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please show us some work you have done on this problem. We can't help you unless you've shown some efforts from your side.

[i'm surprised there is no template made already for this]
 
i am completely lost i don't know where to start..so some direction would be nice.
 
i know f=1/T..but how do you find T from this problem?
 
T is the period, ie the time of one oscillation. Now look at your equation, it resembles a wave through the sine function and the question then is: by what amount do you have to change the time "t" to make the sine go around one time?
 

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