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andrewmena05
15.04.2020 •
Physics
A 1.1-kg uniform bar of metal is 0.40 m long and has a diameter of 2.0 cm. When someone bangs one end of this bar, a 1.5 MHz shock wave is travels along the length of the bar and reaches the other end in 0.12 ms. What is the wavelength of the shock wave in the metal?
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Ответ:
Explanation:
Given,
mass of the bar = 1.1 Kg
length of rod, l = 0.40 m
diameter of the rod, d = 2 cm
frequency, f = 1.5 MHz
time, t = 0.12 ms
wavelength of the shock wave = ?
Speed of the wave =![\dfrac{L}{t}=\dfrac{0.40}{0.12\times 10^{-3}}](/tpl/images/0600/3503/f29d2.png)
v = 3333.33 m/s
wavelength of the wave
Ответ:
Smart;)
And they say we need school to be smart...LIES
Explanation: