Question

cuál es la densidad que tiene un hierro, si su módulo de Young es 1.3x1010N/m2 y la velocidad del sonido que emite e s de 280 m/s

Answer 1

Given data

*The given Young's Modulus is

$Y=1.3\times10^{10}N/m^2$

*The given speed is v = 280 m/s

The formula for the density of iron is given as

$\begin{gathered} v=\sqrt[]{\frac{Y}{D}} \\ D=\frac{Y}{v^2} \end{gathered}$

Substitute the known values in the above expression as

$\begin{gathered} D=\frac{(1.3\times10^{10})}{(280)^2} \\ =1.65\times10^5 \end{gathered}$