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Concept explainers
Wind Chill The wind chill factor represents the air temperature at a standard wind speed that would produce the same heat loss as the given temperature and wind speed. One formula for computing the equivalent temperature is
where represents the wind speed (in meters per second) and represents the air temperature . Compute the wind chill for the following:
(a) An air temperature of and a wind speed of 1 meter per second (m/sec)
(b) An air temperature of and a wind speed of 5 m/sec
(c) An air temperature of and a wind speed of 15 m/sec
(d) An air temperature of and a wind speed of 25 m/sec
(e) Explain the physical meaning of the equation corresponding to .
(f) Explain the physical meaning of the equation corresponding to .
![Check Mark](/static/check-mark.png)
To find:
a. Wind chill factor when an air temperature of and a wind speed of 1 meter per second.
Answer to Problem 57AYU
a. Wind chill factor when an air temperature of and a wind speed of 1 meter per second is .
Explanation of Solution
Given:
It is given that the wind chill factor represents the air temperature at a standard wind speed that would produce the same heat loss as the given temperature and wind speed.
Formula for computing the equivalent temperature is
Where represents the wind speed and represents the air temperature.
a. Wind chill factor when an air temperature of and a wind speed of 1 meter per second.
and meter per second.
![Check Mark](/static/check-mark.png)
To find:
b. Wind chill factor when an air temperature of and a wind speed of 5 meter per second.
Answer to Problem 57AYU
b. Wind chill factor when an air temperature of and a wind speed of 5 meter per second is .
Explanation of Solution
Given:
It is given that the wind chill factor represents the air temperature at a standard wind speed that would produce the same heat loss as the given temperature and wind speed.
Formula for computing the equivalent temperature is
Where represents the wind speed and represents the air temperature.
b. Wind chill factor when an air temperature of and a wind speed of 5 meter per second.
and meter per second.
![Check Mark](/static/check-mark.png)
To find:
c. Wind chill factor when an air temperature of and a wind speed of 15 meter per second.
Answer to Problem 57AYU
c. Wind chill factor when an air temperature of and a wind speed of 15 meter per second is .
Explanation of Solution
Given:
It is given that the wind chill factor represents the air temperature at a standard wind speed that would produce the same heat loss as the given temperature and wind speed.
Formula for computing the equivalent temperature is
Where represents the wind speed and represents the air temperature.
c. Wind chill factor when an air temperature of and a wind speed of 15 meter per second.
and meter per second.
![Check Mark](/static/check-mark.png)
To find:
d. Wind chill factor when an air temperature of and a wind speed of 25 meter per second.
Answer to Problem 57AYU
d. Wind chill factor when an air temperature of and a wind speed of 25 meter per second is .
Explanation of Solution
Given:
It is given that the wind chill factor represents the air temperature at a standard wind speed that would produce the same heat loss as the given temperature and wind speed.
Formula for computing the equivalent temperature is
Where represents the wind speed and represents the air temperature.
d. Wind chill factor when an air temperature of and a wind speed of 25 meter per second.
and meter per second.
![Check Mark](/static/check-mark.png)
To find:
e. The physical meaning of the equation corresponding to .
Answer to Problem 57AYU
e. .
Explanation of Solution
Given:
It is given that the wind chill factor represents the air temperature at a standard wind speed that would produce the same heat loss as the given temperature and wind speed.
Formula for computing the equivalent temperature is
Where represents the wind speed and represents the air temperature.
e. Wind chill factor when an air temperature of The equation corresponds to the function . This directly implies that the wind chill depends on the temperature. Wind chill is equal to the air temperature.
![Check Mark](/static/check-mark.png)
To find:
f. The physical meaning of the equation corresponding to .
Answer to Problem 57AYU
f. .
Explanation of Solution
Given:
It is given that the wind chill factor represents the air temperature at a standard wind speed that would produce the same heat loss as the given temperature and wind speed.
Formula for computing the equivalent temperature is
Where represents the wind speed and represents the air temperature.
f. The equation corresponds to the function . This directly implies that as wind speed greater than 20m/s the wind chill factor depends only on the air temperature.
Chapter 2 Solutions
Precalculus
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