Given that,
Frequency emitted by the bat, f = 47.6 kHz
The speed off sound in air, v = 413 m/s
We need to find the wavelength detected by the bat. The speed of a wave is given by formula as follows :
![v=f\lambda\\\\\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{413}{47.6\times 10^3}\\\\\lambda=0.00867\ m](https://tex.z-dn.net/?f=v%3Df%5Clambda%5C%5C%5C%5C%5Clambda%3D%5Cdfrac%7Bv%7D%7Bf%7D%5C%5C%5C%5C%5Clambda%3D%5Cdfrac%7B413%7D%7B47.6%5Ctimes%2010%5E3%7D%5C%5C%5C%5C%5Clambda%3D0.00867%5C%20m)
or
![\lambda=8.67\ mm](https://tex.z-dn.net/?f=%5Clambda%3D8.67%5C%20mm)
So, the bat can detect small objects such as an insect whose size is approximately equal to the wavelength of the sound the bat makes i.e. 8.67 mm.
Answer:0.6kw
Explanation:
Power=force×velocity
Power=20×30=600w
In kw it's going to be 600/1000=0.6kw
Answer:
I think he would be dead poggers
Explanation:
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