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The spring is uncompressed when the uniform slender bar is in the vertical position shown. Determine the initial angular acceleration of the bar when it is released from rest in a position where the bar has been rotated 30° clockwise from the position shown. Neglect any sag of the spring, whose mass is negligible.
It is required to reduce a pipe of diameter 8 in to a minimum diameter pipe that allows the downstream velocity not to exceed twice the upstream velocity. Determine the diameter of the pipe. Assume smooth transition
Three stock car drivers are racing around a circular bend. They are each circling the bend at different radii: r(1)=249 m , r(2)=255 m , and r(3)=261 m . At a given instant, all three are traveling at the same transverse rate of rotation
To avoid boredom, employees are assigned all three tasks at different times during the shift. Each employee has to work at least half an hour at each station during a five hour shift. How much time should each employee spend at each in order to maxim..
It takes $10,000 to put on a festival each year immediatly before this years festival the sponsoring committee finds that it has $40,000 in an account paying 15% interest compounded annualy after this year how many more festivals can be sponsored wi..
You have been asked to design a hoisting system and a demolition catch system for the superstructure of a bridge that you are removing. Discuss in detail the steps you would take in order to be able to provide the necessary information
The grains of wood in the board make an angle of 20 degrees with the horizontal as shown. Determine the normal and shear stresses that act perpendicular and parallel to the grains if the board is subjected to an axial load of 250 N.(Dimensions l=3..
Air has the following composition on a mole basis: 21 percent O2, 78 percent N2, and 1 percent Ar.
Literature review; to define the criteria required to measure performance of the case- study and identifying the case-study , introducing the case-study and find relevant information.
A 1.10% Carbon hypoeutectoid plain carbon steel is slowly cooled from 900 degrees C to just slighty below 723 degrees C calculate the weight percent proeutectoid cementite present in this steel.
If the porosity of a core sample is 26 percent, the pore volume is7.7 cc, what is the length of the core in inchesif the diameter is 1.5 inches?
What is the maximum safe speed around the curve? If the speed limit on the roadway is 60mph, what action should be taken by the engineer?
If a W14x53 is 20 ft long (simply supported) and is loadeduniformly to its moment capacity what is the maximumdeflection? What will be the uniform load so to get the maximum deflection?
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