Question 148760
 determine who will feel colder: a person in Minneapolis at 10ºF with a 15-mph wind or a person in Chicago at 20ºF with a 25-mph wind.
The formula used in Exercise 109 was 

{{{W = 91.4 -((10.5 + 6.7sqrt(v)-0.45v)(457-5t))/110}}}
:
Minneapolis: T =10; v = 15
{{{W = 91.4 -((10.5 + 6.7sqrt(15)-0.45(15))(457-5(10)))/110}}}
:
{{{w = 91.4 - ((10.5 + 25.95 - 6.75)(457-50))/110}}}
then
{{{w = 91.4 - ((29.7*407)/110)}}}
:
{{{w = 91.4 - (12088/110)}}}
:
w = 91.4 - 109.89
:
w = -18.49 wind chill for Minneapolis
:
:
Following the same procedure with Chicago: v=25 t=20,
I got:
w = -14.9
:
Looks like it's a little worse in Minneapolis
: