Respuesta :
Speed of sound in copper at normal temperature ( 293.15 K ) is:
v = 3,570 m / s
L = 1.5 m
t = L / v = 1.5 m / 3,570 m/s
t = 0.00042 s = 4.2 * 10^(-4) s
v = 3,570 m / s
L = 1.5 m
t = L / v = 1.5 m / 3,570 m/s
t = 0.00042 s = 4.2 * 10^(-4) s
Answer : Time, t = 0.00042 s
Explanation :
It is given that,
Length of the copper rod, [tex]l=1.5\ m[/tex]
The speed of sound in copper wire at [tex]25^0\ C[/tex] is, [tex]v=3560\ m/s[/tex]
We know that the speed of the sound wave is given by :
[tex]s=\dfrac{d}{t}[/tex]
Distance travelled is equal to the length of the wire.
[tex]t=\dfrac{d}{s}[/tex]
[tex]t=\dfrac{1.5\ m}{3560\ m/s}[/tex]
[tex]t=0.00042\ s[/tex]
Hence, this is the required solution.