Completely Lost in this Physics Problem Sinusoidal transverse waves

AI Thread Summary
The discussion focuses on solving a physics problem involving a sinusoidal wave on a string. Key points include determining the wave's frequency, wavelength, and general equation for transverse displacement. The wave's speed is given as 10.00 cm/s, and the displacement equation is provided. Participants emphasize the importance of showing work to receive help, particularly in finding the period and tension of the string. Understanding the relationship between the sine function and time is crucial for solving the problem.
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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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