A pressurized cylindrical tank,5.0 m in diameter,contains water that emerges from the pipe at point C with a speed of

84 \mathrm {~m} / \mathrm { s }

as shown in the figure.Point A is 10 m above point B and point C is 3.0 m above point B.The area of the pipe at point B is

0.080 \mathrm {~m} ^ { 2 }

and the pipe narrows to an area of

0.070 \mathrm {~m} ^ { 2 }

at point C.Assume that the water is an ideal fluid in laminar flow.The density of water is 1000 kg/m³.The rate at which the water level is falling in the tank is closest to $A pressurized cylindrical tank,5.0 m in diameter,contains water that emerges from the pipe at point C with a speed of 84 \mathrm {~m} / \mathrm { s } as shown in the figure.Point A is 10 m above point B and point C is 3.0 m above point B.The area of the pipe at point B is 0.080 \mathrm {~m} ^ { 2 } and the pipe narrows to an area of 0.070 \mathrm {~m} ^ { 2 } at point C.Assume that the water is an ideal fluid in laminar flow.The density of water is 1000 kg/m<sup>3</sup>.The rate at which the water level is falling in the tank is closest to A)300 mm/s. B)340 mm/s. C)250 mm/s. D)210 mm/s. E)160 mm/s.$
A)300 mm/s.
B)340 mm/s.
C)250 mm/s.
D)210 mm/s.
E)160 mm/s.

Two Horizontal Pipes Are the Same Length,but Pipe B Has ΔVΔt\frac { \Delta V } { \Delta t }ΔtΔV​

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Two Horizontal Pipes Are the Same Length,but Pipe B Has $\frac { \Delta V } { \Delta t }$

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