The temperature adjusted for wind chill is a temperature that tells you how cold it feels, as a result of the combination of wind speed, w, in miles per hour, and actual temperature, T, as measured by a thermometer in degrees Fahrenheit. The table below shows the temperature adjusted for wind chill, f(w,T), as a function of w and T. The left column of the table gives the wind speed in miles per hour, the top row gives the actual temperature in degrees Fahrenheit, and the remaining entries give the temperature adjusted for wind chill in degrees Fahrenheit as a function of wind speed and actual temperature. 15 7 3 0 -2 -9 -15 -4 -11 -17 Table of windchills. (a) Estimate fu (15, -15) and give a practical interpretation. fw (15, -15) -0.6 w\T 5 10 15 20 25 If the wind is blowing 15 degrees Fahrenheit colder for each 1 mph increase in wind speed. 10 5 0 -5 -10 -15 -20 1 -5 -11 -16 -22 -28 -34 -4 -10 -16 -22 -28-35 -41 -7 -13 -19 -26 -32 -39 -45 -22 -29 -35 -42-48 -24 -31 -37 -44 -51 mph and the actual temperature is -15 degrees Fahrenheit, it will feel -0.6
The temperature adjusted for wind chill is a temperature that tells you how cold it feels, as a result of the combination of wind speed, w, in miles per hour, and actual temperature, T, as measured by a thermometer in degrees Fahrenheit. The table below shows the temperature adjusted for wind chill, f(w,T), as a function of w and T. The left column of the table gives the wind speed in miles per hour, the top row gives the actual temperature in degrees Fahrenheit, and the remaining entries give the temperature adjusted for wind chill in degrees Fahrenheit as a function of wind speed and actual temperature. 15 7 3 0 -2 -9 -15 -4 -11 -17 Table of windchills. (a) Estimate fu (15, -15) and give a practical interpretation. fw (15, -15) -0.6 w\T 5 10 15 20 25 If the wind is blowing 15 degrees Fahrenheit colder for each 1 mph increase in wind speed. 10 5 0 -5 -10 -15 -20 1 -5 -11 -16 -22 -28 -34 -4 -10 -16 -22 -28-35 -41 -7 -13 -19 -26 -32 -39 -45 -22 -29 -35 -42-48 -24 -31 -37 -44 -51 mph and the actual temperature is -15 degrees Fahrenheit, it will feel -0.6
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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
Transcribed Image Text:The temperature adjusted for wind chill is a temperature that tells you how cold it feels, as a result of the combination of wind speed, w, in miles per hour, and actual
temperature, T, as measured by a thermometer in degrees Fahrenheit. The table below shows the temperature adjusted for wind chill, f(w,T), as a function of w and T.
The left column of the table gives the wind speed in miles per hour, the top row gives the actual temperature in degrees Fahrenheit, and the remaining entries give the
temperature adjusted for wind chill in degrees Fahrenheit as a function of wind speed and actual temperature.
w\T
15
10
5 0 -5 -10 -15 -20
5
7
1
-5 -11 -16 -22 -28 -34
10
3
-4
-10 -16 -22 -28-35 -41
15
0
-7 -13 -19 -26 -32 -39 -45
20
-2
-9
-15 -22 -29 -35 -42 -48
25 -4 -11 -17 -24 -31 -37 -44
Table of windchills."
-51
(a) Estimate fu (15, -15) and give a practical interpretation. fw (15, -15) -0.6
If the wind is blowing 15
degrees Fahrenheit colder for each 1 mph increase in wind speed.
(b) Estimate fr (10, 10) and give a practical interpretation. fr (10, 10)~ 1.4
mph and the actual temperature is -15
If the wind is blowing 10
10
mph and the actual temperature is
degrees Fahrenheit warmer for each 1 degree Fahrenheit increase in actual temperature.
11
degrees Fahrenheit, it will feel -0.6
degrees Fahrenheit, it will feel 1.4
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