The answer would be 2.63. Your welcome. This has been changed to the correct answer.
The answer would be 27,000 Joules because (1/2) m v^2 =30*900 which equals 27,000 J
heat from water goes into air in ball
air expands
ping goes the dent
V=wave velocity , <span>f= frequency, </span><span>λ=wavelength </span>
<span>Use it to find corresponding wavelengths for</span><span> f=28 Hz </span>
<span>λ= v/f= 337/28=12.036 m
</span>
<span>for f=4200 Hz </span>
<span>λ= v/f=337/4200= 0.08 m </span>
<span>So max. wavelength is 12.036 m and </span>
<span>Min Wavelength is 0.08 m </span>
<span>So the range is between .08 m and 12.036 m
</span>Hope this helps.