Answer:
8.40 m/s
Explanation:
Slope of the plot is 0.119
Slope of a plot is given by the change in y direction divided by the change in x direction
Here, the y axis represents inverse wavelength and the x axis represents frequency.
f = Frequency (Hz, assumed)
v = Phase velocity (m/s, assumed)
λ = Wavelength (m, assumed)
So, slope

Now,


The speed of sound travelling in the tube is 8.40 m/s
They both move in the opposite direction in which they hit
Answer:
170 N
Explanation:
F=pressure(pa) ÷ area(m^2)
=100.000 ÷ 0,0017
=<em><u>170</u></em><em><u> </u></em><em><u>N</u></em>