Question

Вычислите скорость распространения колебаний в металлическом стержне, вызванных ударами пневматического молотка, если при ударах частотой 50 Гц в металле возбуждаются волны длиной 117

Answer 1

V=L*v=117*50=5850 м/с

Answer 2

Calculation of the Speed of Propagation of Vibrations in a Metal Rod

To calculate the speed of propagation of vibrations in a metal rod caused by the impacts of a pneumatic hammer, we need to consider the frequency of the impacts and the wavelength of the waves generated in the metal.

According to the information provided, the frequency of the impacts is 50 Hz and the wavelength of the waves is 117 (units not specified).

To calculate the speed of propagation, we can use the formula:

Speed = Frequency x Wavelength

Substituting the given values:

Speed = 50 Hz x 117

Now let's calculate the speed using the given values.

Speed = 50 Hz x 117 = 5850 (units not specified)

Therefore, the speed of propagation of vibrations in the metal rod, caused by the impacts of the pneumatic hammer, is 5850 (units not specified).

Please note that the units for the wavelength and speed were not specified in the question, so the final result is also given without units.