An organ pipe is open at both ends. it is producing sound
atits third harmonic, the frequency of which is 262 hz. the speed
ofsound is 343 m/s. what is the length of the pipe?

To solve this problem we will apply the concepts related to the wavelength of its third harmonic.

It describes that the wavelength is equivalent to

Here,

The wavelength is in turn described as a function that depends on the change of the speed as a function of the frequency, that is to say

In this case the speed is equivalent to the speed of sound and the frequency was previously given, therefore

Finally the length of the pipe would be

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.