An ideal (non-viscous, incompressible) fluid flows through a
horizontal pipe. The fluid density is 900
kg/m3. Initially, the pipe has a diameter of 0.8
cm and the fluid flows at a speed of 6.7 m/s at a pressure of
13,000 N/m2. Then, the pipe widens to a diameter
of 1.7 cm. What is the speed of the fluid in the wider
section of the pipe, in units of m/s?
[Note: if you need to enter a number in scientific notation, use
'e'. For example, 1200 = 1.2e3 and 0.0012 = 1.2e-3.
Include several decimal places in your calculations and your answer
to avoid rounding error. Do not include units with your
answer.]