## anonymous one year ago A 1.5 m solid iron rod is at 25 degrees Celsius. How long would it take sound to move through the rod from one end to another? **will draw table inside!! A. 4.5 * 10^-3 s B. 9.8 * 10^-4 s C. 4.2 * 10^-4 s D. 2.9 * 10^-4 s

1. anonymous

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2. Michele_Laino

here we have to apply this formula: $\Large t = \frac{L}{v} = \frac{{1.5}}{{5130}} = ...{\text{seconds}}$

3. anonymous

we get 2.9E-4 choice D is our solution?

4. Michele_Laino

that's right!

5. anonymous

yay! thanks so much!!:D

6. Michele_Laino

:D