Adog can hear sounds in the range from 15 to 50,000 hz. what wavelength corresponds to the lower cut-off point of the sounds at 20◦c? answer in units of m.

If you wanted the lower cut off you would divide 344/15=22.9

If you wanted to find the higher cut off you would divide 344/50,000=.00688

low freq = 100 mhz

low wavelength =101.7m

length = 3x10^8/freq

b would be the answer