Chapter 14.1, Problem 30E

Wind chill Wind and cold temperatures combine to make the air temperature feel colder than it actually is. This combination is reported as wind chill. The table shows the latest wind chill calculations from the National Weather Service and indicates that wind chill temperatures, WC, are a function of wind speed, s, and air temperature, t. If WC = f(s, t), use the table to find and interpret each of the following.

(a) f(25,5) (b) f(15, -15)

Air Temperature ( $°F$

)

	35	25	15	5	-5	-15	-25
5	31	19	7	-5	-16	-28	-40
15	25	13	0	-13	-26	-39	-51
25	23	9	-4	-17	-31	-44	-58
35	21	7	-7	-21	-34	-48	-62
45	19	5	-9	-23	-37	-51	-65

Source: National Weather Service