One to two hours depending on temperature and humidity.
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The speed of sound in air is approximately 343 meters per second. To convert this to kilometers per minute, we need to multiply by 60 seconds (1 minute). Therefore, the sound would travel 20,580 meters in 1 minute, which is equivalent to 20.58 kilometers.
There are 16 dry ounces to the pound.
ANSWER 1 c.yard = 694.28 dry quarts
2000
128