Fluid runs through a drainage pipe with a 10-cm radius and a length of 30 m (3000 cm). The velocity of the fluid gradually decreases from the center
of the pipe toward the edges as a result of friction with the walls of the pipe. For the data shown, v(x) is the velocity of the fluid (in cm sec) and x Page 298 represents the distance (in cm) from the center of the pipe toward the edge.
a. The pipe is 30 m long (3000 cm). Determine how long it will take fluid to run the length of the pipe through the center of the pipe. Round to 1 decimal
place.
b. Determine how long it will take ftuid at a point 9 cm from the center of the pipe to run the length of the pipe. Round to 1 decimal place.
c. Use regression to find a quadratic function to model the data.
d. Use the model from part (c) to predict the velocity of the fluid at a distance 5.5 cm from the center of the pipe. Round to 1 decimal place.
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Chapter 3 Solutions
COLL ALG & TRIG LOOSELEAF W/ALEKS ACCESS
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