(Windchill Temperature) When the weather becomes cold, the windchill temperature is used to quantify the effect of wind on the perceived temperature. If W is the wind speed measured in miles per hour, F is the ambient temperature in degrees Fahrenheit, the windchill temperature is given by the formula:

T = 1.05 + 0.93T 3.65W + 3.62p W + 0.103T p W + 0.0439W 2

Define a SCHEME function, named (windchill W F), which computes the windchill factor for a Fahrenheit temperature, F, and wind speed in mph, W. Use a let form to create a local variable for the square root of the wind speed.

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