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roam
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Homework Statement
A conduction heat wave is caused to pass through a metal bar of average temperature Tmean = 35.0 °C, altering its temperature sinusoidally with an amplitude of Ti = 2.0 °C. The equation which gives the temperature, T(x,t), of the metal bar at any place x (in meters) inside it at any time t (in seconds) is:
T(x,t) = Tmean + Ti sin[ 2π(0.027t – 3.0x) + Co ]
where Co = 1.0π.
(a) What is the amplitude of the wave? (b) What is the wavelength of the wave?
Homework Equations
- Speed of sound wave (where B is the bulk modulus and mu p is the pressure): [tex]v=\sqrt{\frac{B}{\rho}}[/tex]
- Power of sinusoidal wave: [tex]P=\frac{1}{2} \mu \omega^2 A^2 v[/tex]
- For sound traveling through air:[tex]v=(331)\sqrt{1+\frac{T_C}{273}}[/tex]
- Wave function for a sinusoidal wave: [tex]y=A sin(kx-\omega t)[/tex]
The Attempt at a Solution
I don't understand how to apprach this problem. For example for part (a), what formula can I use? Also how do I find the temprature using the given equation:
T(x,t) = Tmean + Ti sin[ 2π(0.027t – 3.0x) + Co ]
what values do I need to substitute for "x" and "t"?
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