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A river discharges into a reservoir at a rate of 400,000 ft'/s (cfs), and the outflow rate from the reservoir through the flow passages in the dam is 250,000 cfs. If the reservoir surface area is 40 mi, what is the rate of rise of water in the reservoir?

A river discharges into a reservoir at a rate of 400,000 ft'/s (cfs), and the outflow rate from the reservoir through the flow passages in the dam is 250,000 cfs. If the reservoir surface area is 40 mi, what is the rate of rise of water in the reservoir?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question 2 pls. Complete soln and correct units. Thanks
Problem 1 A jet of water discharges into an open tank, and water leaves the tank through an orifice in the bottom at a rate of 0.003 m'/s. If the cross-sectional area of the jet is 0.0025 m? where the velocity of water is 7 m/s, at what rate is water accumulating in (or evacuating from) the tank? Problem 2 A river discharges into a reservoir at a rate of 400,000 ft’/s (cfs), and the outflow rate from the reservoir through the flow passages in the dam is 250,000 cfs. If the reservoir surface area is 40 mi², what is the rate of rise of water in the reservoir? Problem 3 The open tank in the figure contains water and is being filled through section 1. Assume incompressible flow. If the water level h is constant, determine the exit velocity V2 far the given data Vi = 3 m/s and Q = 0.01 m³/s. O,-0.01 m D,-S em D-7 em Water Problem 4 A partly full water tank admits water at 85 N/s weight flow while ejecting water on the ather side at 5500 cm'/s. The air pocket in the tank has a vent at the top and is at 20°C a nd 1 atm. If the fluids are approximately incompressible, how much air in N/h is passing through the vent? In which direction? Problem 5 Oil (SG=0.91) enters the thrust bearing at 250 N/hr and exits radially through the narrow clearance between thrust plates. Compute (a) the outlet volume flow in ml/s, and (b) the average outlet velocity in cm/s. D 10 cm h2 mm D, =3 mm
Transcribed Image Text:Problem 1 A jet of water discharges into an open tank, and water leaves the tank through an orifice in the bottom at a rate of 0.003 m'/s. If the cross-sectional area of the jet is 0.0025 m? where the velocity of water is 7 m/s, at what rate is water accumulating in (or evacuating from) the tank? Problem 2 A river discharges into a reservoir at a rate of 400,000 ft’/s (cfs), and the outflow rate from the reservoir through the flow passages in the dam is 250,000 cfs. If the reservoir surface area is 40 mi², what is the rate of rise of water in the reservoir? Problem 3 The open tank in the figure contains water and is being filled through section 1. Assume incompressible flow. If the water level h is constant, determine the exit velocity V2 far the given data Vi = 3 m/s and Q = 0.01 m³/s. O,-0.01 m D,-S em D-7 em Water Problem 4 A partly full water tank admits water at 85 N/s weight flow while ejecting water on the ather side at 5500 cm'/s. The air pocket in the tank has a vent at the top and is at 20°C a nd 1 atm. If the fluids are approximately incompressible, how much air in N/h is passing through the vent? In which direction? Problem 5 Oil (SG=0.91) enters the thrust bearing at 250 N/hr and exits radially through the narrow clearance between thrust plates. Compute (a) the outlet volume flow in ml/s, and (b) the average outlet velocity in cm/s. D 10 cm h2 mm D, =3 mm
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