Answer:
Explanation:
The resistance is given as
Where A IS Cross sectional area of wire
therefore resistivity \rho can be wrtten as
Putting all value to get resistivity value
Consider atmospheric air at 20°C and a velocity of 30 m/s flowing over both surfaces of a 1-m-long flat plate that is maintained
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The frequency of the wave has not changed.
In fact, the frequency of a wave is given by:
where v is the wave's speed and is the wavelength.
Applying the formula:
- In air, the frequency of the wave is:
- underwater, the frequency of the wave is:
So, the frequency has not changed.