WATER RESOURCES ENGINEERING
3rd Edition
ISBN: 9781119490579
Author: Mays
Publisher: WILEY
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Chapter 2, Problem 2.2.5P
To determine
The description of the water-energy-food nexus as shown in the given figure.
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Directions: Solve the following problems completely, and make a detailed solution. Any incompletesolution arriving at such answers will never be considered.
6. The specific weight of glycerin is 1.26 lb/ft3. Compute its density (kN/m3) and specificgravity. What is its specific weight in g/mL?
Problem 1
Determine the Reactions
10 k
6 k
DO
500 lb/ft
20 ft
A
C.
30 ft
15 ft-
10 ft 10 ft-
09
Chapter 2
Q.2 Determine the energy loss if glycerin flows 30m through a 1m dia pipe with an average velocity of
4.0m/s. Given that density of glycerin is 1258 kg/m³ & kinematic viscosity is 7.63 x 104 m/s.
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- 1. a) Find the mass of a tank of ethyl alcohol in units of kg if it weighs 3.6 kN and the specific weight in units of kN/m³ if the volume is 0.3m³. | b) A 3 mm diameter of straw is inserted into a pan of water at 30°C (y water at 30°C = 9.764 kN/m³, o = 0.0712 N/m). If the water in the straw rises to a height of 3.6 mm above the water surface in the pan, calculate the contact angle, 0. c) Determine the viscosity of the fluid between the shaft and brushing shown in Figure Qld if the shaft moves at 1.5m/s under a force of 70 N. The uniform radial gap between the brushing and shaft is 0.15 mm. 90 mm / diameter F-70 N 1.5 m/s 155 mm Figure Qldarrow_forwardA cylindrical tank 1m in diameter and 3m tall weighs 3.86kN. Given: ylead = 100kN/m3. 14. Which of the following most nearly gives the weight of the lead that must be placed inside the tank to make the top of the tank flushed with water surface?arrow_forwardProblem 7: A brass weight is to be attached to the bottom of the cylinder made from a uniform material with specific weight 6.46 kN/m³, so that the cylinder will be completely submerged and neutrally buoyant in water at 95°C which has density of 9.44 kN/m³. The brass is to be a cylinder with the same diameter as the original cylinder as shown in the figure. What is the required thickness of the brass? Water surface Cylinder Water at 95°C 750 mm Brass plate Y=84.0 kN/m 1= ? 450 mm diameter-arrow_forward
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