Answer:
speed
Explanation:
it is used because it has both magnitude and direction.
Answer:
mass of hot water must be 97.80
Explanation:
Explanation:
gas vibrate and move freely at high speeds, liquid vibrate, move about and slide past each other. solid vibrate (jiggle) but generally do not move from place to place
The other factor that determines the frequency produced by a wind instrument is the speed at which the sound waves travel. Although typically about 343 m/s (at room temperature), the speed of sound does vary slightly with the temperature of the air, increasing as the temperature rises and decreasing as the air becomes colder.
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