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A water tank consists of a cylindrical part of radius r and height h, and a hemispherical top. The tank is to be constructed to hold 500 m3 of fluid when filled. The surface area of the cylindrical part is (2*pi*r*h), and its volume is (pi*r^2*h). The surface area of the hemispherical top is given by (2*pi*r^2) and its volume is given by (2*pi*r^3 / 3). The cost to construct the cylindrical part of the tank is $300.00/m^2 of the surface area and 400 / m^3 for the hemispherical top. Plot the cost versus r for 2<= r <=10m
THE 2.5 MG VAN IS TRAVELLING WITH A SPEED OF 100KM/H WHEN THE BRAKES ARE APPLIED AND ALL 4 WHEELS LOCK. IF THE SPEED DECREASES TO 40KM/H IN 5S.
If the 50-kg crate starts from rest and travels a distance of 6m up the palne in 4s, determine the magnitude of force P acting on the crate. The coefficient of kinetic friction between the crate and the ground is \mu_k=.25
The medium contains a wetting phase in equal proportions. Calculate the numerical value of the Leverett J- function for this idealized porous medium. Assume the wall thickness of the capillary tube to be negligible small.
A projectile is fired into a block of wood that is hanging on the end of a light rigid rod. How you would estimate the speed of the projectile. What might account for the errors in your estimation.
What is the maximum load that a .75" diameter steel cable can hold if the UTS of the steel is 145,000 PSI and a safety factor of 1.5 is required.What is the stretch of the 360" cable under this load
An ethanol plant distills alcohol from corn. The distiller processes 2.0 t/h of feed containing 15% alcohol and 82% water; the rest is inert material. The bottoms (waste) produced is 85% of feed and contains 94% water, 3.5% alcohol, and 2.5% inert..
The structure consists of two uniform members AB and BC, each weight 2kN. The member are pinned to each other at B, and the structure is supported by a pin at C and a surface at A having coefficient of static friction 1.2.
After the cone of depression has achieved equilibrium, the piezometric heads at two observation wells 40 and 95 m from the pumping well are measured as 78.9 and 83.4 above sea level, respectively.
A soil sample has a wet unit weight of 96 lb/ft^3, amoisture content of 17% and a degree of saturation of 60%. Findthe: (A) Void Ratio, (B) Specific gravity, (C) Saturated unitweight.
What is the density in kg/m3 of: (a) dry air at 25 degrees C and a pressure of 1,000 millibars; (b) moist air with a relative humidity of 80% at the same temperature and pressure
Wastewater flow is 80 gpcd with 170 mg/l BOD and 190 mg/l suspended solids. Size the extended aeration basin and clarifier using the minimum detention time and overflow rates. Calculate the average F/M using an MLSS of 1000 mg/l.
Determine the peak outflow rate when the inflow hydrograph is routed through this basin and what is the design storage and water surface elevation at the peak outflow rate.
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