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The Pressure Difference P Between the Ends of a Small

Question 37

Multiple Choice

The pressure difference P between the ends of a small pipe of radius x is given by P = The pressure difference P between the ends of a small pipe of radius x is given by P = , where k is a non-zero constant real number. Use differentials to determine by approximately what percentage the pressure changes if the radius of the pipe is decreased from 2 to 1.96 units. A) 20 % B) -16 % C) 16 % D) -8 % E) 8 % , where k is a non-zero constant real number. Use differentials to determine by approximately what percentage the pressure changes if the radius of the pipe is decreased from 2 to 1.96 units.


A) 20 %
B) -16 %
C) 16 %
D) -8 %
E) 8 %

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