Wind speed (km/h) 20 30 40 50 60 70 T - 10 - 18 - 20 -21 -22 -23 -23 - 15 -24 - 26 -27 -29 -30 -30 - 20 - 30 - 33 - 34 -35 - 36 -37 - 25 - 37 - 39 -41 -42 -43 - 44 Actual temperature ("C)
Wind speed (km/h) 20 30 40 50 60 70 T - 10 - 18 - 20 -21 -22 -23 -23 - 15 -24 - 26 -27 -29 -30 -30 - 20 - 30 - 33 - 34 -35 - 36 -37 - 25 - 37 - 39 -41 -42 -43 - 44 Actual temperature ("C)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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The wind-chill index W is the perceived temperature when the actual temperature is T and the wind speed v,so we can write W=f(T,v). The following table of values is an excerpt from Table 1 in section 14.1.Use the table to find a linear approximation to the wind -chill index function when T is near -15°C and v is near 50km/h .Then estimate the wind -chill index when the temperature is -17°C and the wind speed is 55km/h.
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