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A 90-N.m torque is applied to a hollow shaft having the cross section shown. Neglecting the effect of stress concentrations, determine the shearing stress at points a and b.
Write a brief (No more than a few paragraphs plus the equations themselves on a) description of the three-dimensional unsteady Navier-Stokes equations as applied to water.
The traffic on the one-way main street shown below may be satisfactorily described by a Poisson process with an average rate of arrival of 8 cars per minute. A driver (indicated by the box) on the side street is waiting to cross the main street.
The rope is 16 m long and the tree limb is 8 m above the man's center of gravity where he holds the rope. Suppose that the man begins at rest right next to the child and backs away with an acceleration of 0.2 m/s^2.
When stationary, vehicles are spaced at average distance headway of 6 m. It may be assumed that there is a linear relationship between speed and density. When the traffic flow approaching the roadworks is 3500 vehicles per hour
How much extra water does a 175 - lb concrete canoe displacecompared to an ultra-lightweight 38 - lb Kevlar canoe of the samesize carrying the same load?
If the actual coefficient of sliding friction on icy pavementis 0.05, theoretically within what range of speeds could a vehiclebe operated without sliding inward or outward for the following problems.
For a rubber component that, in its final form is to be vulcanized, should vulcanization be carried out prior or subsequent to the forming operation? Why?
The grid Az of a line is 142° 25' 18". If the convergence angle is 1° 05' 34" and the arc to chord correction is 2.1", what is the geodetic Az of the line
detail description of staircase with it3939s plandesign criteria about it for various types of buildingsstanderd
A cohesionless soil sample was subjected to a triaxial test. The sample failed when the minor principal stress (confining pressure) was 1200 lb/ft^2 and the deviator stress was 3000 lb/ft^2.
To avoid the salinization of soil in a farming area, parallel drainage canals are to be installed to maintain the water table at a depth of at least 4m below the ground surface. It is thought that no evapo-transpiration would occur below that dept..
Investigators have determined that the rate equation for bacterial kill in batch chlorine contact chambers is: rxn rate = dC/dt=-kCt where C is the concentration of bacteria, k is the rate constant, and t is time.
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