Answers: 1
in air at 
is defined as 
, this can be calculated by the following equation:
(1)
is the Heat capacity ratio for air
is the Universal Gas constant 
is the temperature in Kelvin
is the air molar mass
(2)
(3)
is the distance between the person and the canyon wall
is the time it takes to the sound wave to travel from the person and then go back
(4)
(5)
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A person yells across a canyon and hears an echo 2.5 seconds later. The air temperature is 21°C. How...
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