Exercises 11–17 involve the notion of windchill temperature— see Example 7 in §...

Exercises 11–17 involve the notion of windchill temperature— see Example 7 in § 2.1, and refer to the table of windchill values on page 85

Recent research led the United States National Weather Service to employ a new formula for calculating windchill values beginning November 1, 2001. In particular, the table on page 85 was constructed from the formula

Here, as in the Siple formula of Exercise 15, W denotes windchill temperature (in degrees Fahrenheit), t the air temperature (for t ≤ 50^oF), and s the windspeed in miles per hour (for s ≥ 3 mph).⁶ Compare your answers in Exercises 13 and 14 with those computed directly from the National Weather Service formula above.