The temperature at 12 noon was 15°C above zero. If it decreases at the rate of 3°C per hour until midnight, at what time would the temperature be 9oC below zero? What would be the temperature at midnight?
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Answer:
9°c
Step-by-step explanation:
A medium of gas normal to sound contains neutral atoms and molecules which conduct the transmission of sound waves through the gas. Sound waves which propagate in a gas contain lighter molecules, and fewer of them per volume, than in liquids or solids.
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