Wednesday
April 16, 2014

Homework Help: physics

Posted by Romy on Monday, April 16, 2012 at 1:48pm.

Humans can hear sounds with frequencies up to about 20.0 kHz, but dogs can hear frequencies up to about 40.0 kHz. Dog whistles are made to emit sounds that dogs can hear but humans cannot. If the part of a dog whistle that actually produces the high frequency is made of a tube open at both ends, what is the longest possible length for the tube? (Assume a temperature of 20 C.)

mm

I used this formula L = v/2*f1, I end up with 0.43 cm which should be 4.3mm but its wrong and I don't know why. Could someone please explain it to me. Thank you!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - Humans can hear sounds with frequencies up to about 20.0 kHz, but dogs...
Physics - Humans can hear sound frequencies ranging from about 20-20000 Hz. What...
Physics - Physics Question Finally, your friend's twin engine jet airplane lands...
Science - An object is vibrating.Yourdog can hear it but you cant .What most ...
College Physics - Finally, your friend's twin engine jet airplane lands. As it ...
Science 4th Grade - Bats and dolphins both hear a ______ than humans do... a....
Physics - A hypothesis says the upper limit in frequency a human ear can hear ...
biology - If your ears were larger, you would: a. be able to hear sounds at ...
Physiology - If you placed the stethoscope on the patient's bracial artery, but ...
physics - Which of the following statements is not true about resonance? Choose...

Search
Members