Answer:
It seems like your question got cut off. It looks like you're trying to solve a fluid dynamics problem involving pipes and flow rates. To help you with this, I need a bit more information. Specifically, I need to know the relationship between the velocities and flow rates in the different pipes, as well as any relevant pipe dimensions or properties.
Step-by-step explanation:
However, I can provide you with some general information about fluid flow in pipes:
The flow rate (Q) through a pipe is given by:
Q = A * v,
where:
Q is the flow rate (m³/s),
A is the cross-sectional area of the pipe (m²), and
v is the velocity of the fluid (m/s).
If you have the exit flow rate (q4) in cubic meters per hour (m³/h), you'll need to convert it to cubic meters per second (m³/s) for consistency with the other units in the problem.
To convert q4 from m³/h to m³/s, you can use the conversion factor:
1 m³/h = 2.77778e-7 m³/s.
So, if q4 = 120 m³/h, then q4 = 120 * 2.77778e-7 m³/s.
Once you provide more information about the relationships between the velocities and flow rates in the different pipes, as well as any other relevant details, I can help you solve the problem more specifically.