Final answer:
To find the flowing velocity of water through a tube, one needs the water volume and the time frame over which it flows. The student's question does not provide a time frame, making it impossible to compute the flow velocity. Additional information is required for a conclusive answer.
Step-by-step explanation:
The student's question is asking for the flowing velocity of water through a tube of a specific diameter, given a certain volume of water. This is a physics problem related to fluid dynamics. To determine the fluid velocity, we can use the continuity equation, which, in simple terms, states that the flow rate is consistent across different cross-sections of a tube (assuming incompressibility and no leakages).
First, we need to calculate the tube's cross-sectional area using the formula π20 = π × radius2, given the tube's diameter (double the radius). Then we divide the volume of water by the tube's cross-sectional area to find the velocity. However, the question does not provide a time frame over which the 4000 L of water is flowing, which is necessary to determine a velocity. Assuming the student meant to provide a time or inquire about the flow rate rather than the flow velocity, we would need that information for a complete answer. Otherwise, the given information is insufficient to calculate the flow velocity in the tube.