PART ONE
An open vertical tube has water in it. A
tuning fork vibrates over its mouth. As the
water level is lowered in the tube, the eighth resonance is heard when the water level is
217.5 cm below the top of the tube.
(IMAGE)
What is the wavelength of the sound wave?
The speed of sound in air is 343 m/s.
Answer in units of cm.

PART TWO
What is the frequency of the sound wave; i. e.,
the tuning fork?
Answer in units of s^−1

PART THREE
The water continues to leak out the bottom
of the tube.
When the tube next resonates with the tuning fork, what is the length of the air column?
Answer in units of cm.

(a) 58 cm

(b) 591.4 Hz

(c) 246.5 cm

Explanation:

(a)

For closed organ pipe, the wavelength is given by

where is wavelength, L is the length of the pipe and n is the resonance

Substituting 217.5 m for L and 8 for n then the wavelength of the sound will be

(b)

We know that the speed of sound, v is a product of frequency and wavelength.

Making frequency the subject of the formula then

and since the velocity is given as 343 m/s and wavelength is already found in part a above but now we change units from cm to m then

(c)

We know that

The next resonance will be the 9th and we know the wavelength hence making L the subject then

the cellphone, they would then know if the killer would have contacted them or always hated them. or if it was a breakup. but if that is not the case, then it would be the clothing. to put in a bullet, it would have to be put in by hands. hands have finger prints which, would have giving you the answer of who done it.

explanation:

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).