Water is draining from an open conical funnel at the same rate at which it is entering

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Water is draining from an open conical funnel at the same rate at which it is entering the top. The diameter of the funnel is $1 \mathrm{~cm}$ at the top and is $0.5 \mathrm{~cm}$ at the bottom, and it is $5 \mathrm{~cm}$ high. The friction loss in the funnel per unit mass of fluid is given by $0.4 V^{2}$, where $V$ is the velocity leaving the funnel. What is (a) the volumetric flow rate of the water and (b) the value of the Reynolds number entering and leaving the funnel?

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