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A vertical post AB is embedded in a concrete foundation and held at the top by two cables (see figure). The post is a hollow steel tube with modulus of elasticity 200 GPa, outer diameter 40 mm, and thickness 5 mm. The cables are tightened equally by turnbuckles.
If a factor of safety of 3.0 against Euler buckling in the plane of the figure is desired, what is the maximum allowable tensile force Tallow in the cables?
Research and explain the difference between phase change via evaporation and phase change via boiling. Name one device or consumer product that uses each of these phase change mechanisms. Cite your source(s)
a piece of steel has a conductivity of k 15 wmk and a brick has k1wmk. how thick a steel wall will provide the same
if the volume of a bucketful of water is described by the normal distribution with a mean of 2.7 gallons and a standard
The velocity at the inlet is controlled so that it changes according to the following expression. V=a-ct^2, where a = 20m/s, c- 0.8m/s. If the tank initially contains 3kg of liquid water, determine the final mass at the end if 4 seconds of flow.
a cantilevered beam bracket of uniform cross section extends 12 inches from the wall and supports 100 pounds of load at
consider a combined gas-steam power plant. water for the steam cycle is heated in a well-insulated heat exchanger by
If it is known that the value of the stress exponent n for this alloy is 8.2, compute the steady-state creep rate at 1300 K and a stress level of 89 MPa.
Calculate the force of electrical attraction when the material is in the center of the capacitor
A thin film of constant thickness, h, flows down an angled plate due to the influence of gravity. Using mue? for the viscosity and reo? for the density of the fluid, find the velocity profile u(y) following the coordinates below. Clearly state all as..
steam having pressure 4.0 mpa and temperature of 880 k enters the turbine installed in a power plant at the rate 500
Define the main structural characteristics of a pin joint and describe an existing structure where such joints are used and why.
in a close stationary system 2 kg of argon is heated from 20oc to 120oc. determine the amount of heat transfer when
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