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The uniform slender bar of mass m and length L with small end rollers is released from rest in the position shown with the lower roller in contact with the horizontal plane. Determine the normal force N under the lower roller and the angular acceleration of the bar immediately after release.
A 1kg ball is dropped from the top of a cliff and falls with a constant acceleration due to gravity. Assume that effects of air resistance can be ignored.
A four-wheel tractor whose operating weight is 47,877 lb is pulled up a road whose slope is +3.5% at a uniform speed. If the average tension in the towing cable is 4,860lb, what is the rolling resistance of the road
The maximum eight-hour average concentration of carbon monoxide (CO) in an urban area is measured to be 17 ppm. The NAAQS is 9 ppmv (equivalent to 10.3 mg/m^3 estimated at P = 1 atm and T=298.25°K).
An element in plane stress is subjected to stresses sigma x=27 MPA,sigma y=14 MPA,sigma xy=6MPA.Using mohr's circle,determine the stresses acting on an element oriented at an angle 40 degrees from the x axis.
q1. briefly explain the purpose of the international space station and list the name of all space agencies involved in
Determine the deflection at the mid span of a simple beam (wood joist) of a row house. The joist is designed as 2x12@16'' for DL = 12psf and LL=40 psf. The span length of the joist is 18'
Concrete pier is loaded on top with a uniformly distributed load of600 lbs per square foot. Investigate the state of stressat a level of 4 ft. above the base.
The train is travelling at 0.8 m/s i relative to a man on the side of the tracks. What is the speed of the bug as seen by the man at the side of the tracks? What is the speed of the train relative to (or as seen by) the bug?
Determine the final temperature of the air. Neglect the energy stored in the paddle wheel.
A strain arrangement at a point is an shown in fig. Find out the normal strain and shear strain in plane AB.
A water sample has bucarbonate concentration of 220 mg/l ( HCO3- )and the PH of the water is 7.9 > Express the approximate alkalinity of this water as mg/l of CaCO3
what is a dummy activity and slack activity and also what are slack variables in linear programming constraints equation
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