Monday
September 1, 2014

Homework Help: AP Calculus

Posted by Leannna on Sunday, January 23, 2011 at 8:48pm.

The wind chill is the temperature, in degrees Fahrenheit, a human feels based on the air temperature, in degrees Fahrenheit, and the wind velocity (v), in miles per hour (mph). If the air temperature is 32degrees Fahrenheit, then the wind chill is given by W(v)=55.6-22.1v^.16 and is valid for 5 is < or = v which is < or = 60.

a) Find W'(20). Using the correct units, explain the meaning of W'(20) in terms of wind chill.
I got W'(20)=-.2855 but don't know what that means.
b) Find the average rate of change of W over the interval 5 is < or = v which is < or = 60. Find the value of v at which the instantaneous rate of change of W is equal to the average rate of change of W over the interval 5 is < or = v which is < or = 60.
I got the average rate of change as -.2538 but i don't know how to do the instantaneous rate of change.
c) Over the time interval O is < or = to t which is < or = to 4 hours, the air temperatures is a constant 32degrees Fahrenheit. At time t=0, the wind velocity is v=20mph. if the wind velocity increases at a constant rate of 5mph per hour, what is the rate of change of the wind chill with respect to time at t=3 hours? Indicate units of measure.
All I know is that you have to do the derivative but i don't know about c.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Calc - The wind chill is the temperature, in degrees Fahrenheit, a human feels ...
math - The temperature on one day in January for Phoenix, AZ, is 59 degrees ...
Math 116 - 1.IN a given training week, a swimmer completes 1/4 mile on day one, ...
College Math - A temperature of 38 degrees Fahrenheit (F) is equivalent to 276....
Applied Calculus...... - Suppose a snowy-tree cricket chirps 180 times per ...
Calculus - The normal body temperature in humans ranges from 97.6 degrees ...
question - A temperature of 41 degrees F is equivalent to 278.2 degrees K, while...
physics - You work in a materials testing lab and your boss tells you to ...
Algebra - A temperature of 30 degrees F is equivalent to 271.89 degrees K, while...
Calculus - The celcius scale is devised so that 0 degrees celcius is the ...

Search
Members