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A plate is pulled upward from a pool of liquid with velocity, V, entering a thin liquid film on the surface of the plate. The flow is assumed to be laminar and the film thickness, H, constant. Using a coordinate system located on the plate at the surface of the pool, complete the following:
a. Dram and sketch the system. Include coordinate system in your sketch.
b. In what direction is flow and shear stress?
c. What assumptions can you make regarding this system?
d. What are your boundary conditions for this system?
Knowing that the magnitude of P is 35 N, determine by trigonometry (a) the required angle a if the resultant R of the two forces applied to the support is to be horizontal, (b) the corresponding magnitude of R.
the tank contains water to depth of 2m and oil (sg=.8) on top of the water to a depth of 1m detrermine the magnitude and location of the resultant fluild force acting on one end of the tank
A ship 200 m long moves through fresh seawater (ρ = 1,025.6kg/m3) at 32 km/h. A model of this ship (scale 1:75) isto be tested in a towing basin containing a liquid of specificgravity 0.85.
World population 10,000 years ago has been estimated at about 5 million. what exponential rate of growth would have resulaed in the population in 1850 , which is estimated at 1 billion ? had that rate continued , would the population have been in the..
A rectangular beam of width 300 mm and depth 450 mm supports loads producing a shear force of 300 kN at a particular section. What shear stresses exist at the following points
Due to a leak in Pump Station 1,the Alaska pipeline is shut down briefly.The pipe line is half full.Assume the pipe is welded horizontally at its midpoint.What is the tensile force on the weld per foot? Assume Ø=40”and ?oil=53.55lb/ft3.
A-Olympus Mons, a 69,000-foot-tall mountain on Mars, is the largest volcano in the solar system. Its circumference at the base is large enough to cover almost the entire state of Colorado. A space probe could safely land at almost any point on the vo..
How long will it take for 99 percent of the chemical to be destroyed? (c) How long will it take for 99.9 percent of the chemical to be destroyed?
the water is pumped out of the aquifer at a rate of 2000 gpd, treat it with activated carbon and then put it back into the aquifer. At the flow rate how long until al the PCE is removed, assume carbon removed 100% of the PCE
a 200 lb divers stands on the end of the diving board. determine the shear force and bending moment diagrams
The temperature in the stack is 300 degrees F and the pressure is 725 mm Hg. If the total flow rate of gas out of the stack is 190 standard cubic meters per second, calculate the total mass emissions of particulates out of the stack in kg/day.
Prepare a preliminary design of a system to collect dust from a plant under the following conditions: Sample of Dust: 50% by wt. below 30 micrometers; 80% by wt. below 70 micrometers Density= 2.5 g/cubic cmGas Flow Rate: 30,000 acfm (actual cubic fee..
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