Answer: If you want to change the pitch of a sound, you have to change the <em>frequency.</em>
Explanation:
Pitch is the quality of the sound to judge it has higher or lower.The frequency of the sound wave is perceived as pitch.Pitch and frequency of the sound are related to each other
- If want to increase the pitch we have to increase the frequency of the sound.
- If want to decrease the pitch we have to decrease the frequency of the sound.
If you want to change the pitch of a sound, you have to change the <em>frequency.</em>
Diffusion is the right answer, because technically the only acceptable answers here are diffusion and osmosis. But osmosis occurs in a semi-membrane, leaving no choice but diffusion.
(My bad if my answer is incorrect!)
1 mile = 1609.344 meters
1 hour = 3600 seconds 345.48 miles per hour x 1609.344
meters/mile x 1hour/3600seconds = 154.44 meter per second~~ANSWERR
