The wind chill factor represents the equivalent 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 Ï… represents the wind speed (in meters per second) and t represents the air temperature (°C). Compute the wind chill for the following:

(a) An air temperature of 10°C and a wind speed of 1 meter per second (m/sec)

(b) An air temperature of 10°C and a wind speed of 5 m/sec

(c) An air temperature of 10°C and a wind speed of 15 m/sec

(d) An air temperature of 10°C and a wind speed of 25 m/sec

(e) Explain the physical meaning of the equation corresponding to 0 ‰¤ Ï… < 1.79.

(f) Explain the physical meaning of the equation corresponding to Ï… > 20.

0 s v < 1.79 (10.45 + 10 Vv v)(33 t) 33 1.79 < v s 20 22.04 33 1.5958(33 t) v > 20