Fluids and Conservation Laws Practice Test

Oil flows steadily and incompressibly through a pipe that widens from area $A$ to $3A$. If the speed in the narrow section is $6\ \text{m/s}$, what is the speed in the wide section?

Water flows steadily and incompressibly through a pipe with $A_1=3\ \text{cm}^2$ and $v_1=4\ \text{m/s}$. If $A_2=6\ \text{cm}^2$, what is $v_2$?