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A drilling engineer wishes to support pipes of length L on blocks so that the magnitude of the bending moment in the pipes directly over the supports is equal to the magnitude of the bending moment at the center of the pipes. Let w be the weight of the pipes per unit length and neglect the width of the support blocks. (a) Determine the distance from each end, aL, at which the engineer should place the supports. (b) Determine the corresponding magnitude of the bending moments at the supports and at the center.
Normal load at failure was 93.8N with a maximum shear load of 38.7N. Find stresses on the failure plane, sketch a graph showing these on the shear stress and normal stress axes. Find the friction angle and shear strength.
Describe some of the benefits of physical models and mock-ups. What data are required to measure the following cost-effectiveness, system effectiveness, operational availability, and life-cycle cost?
If friction between the cars and the rails is neglected, what were the magnitude and the direction of the velecity of the cars after the collision?
a gate having cross section shown in fig closes an opening 5 ft and 4 ft high in a water reservoir. The gate weighs 400lb and its center of gravity is 1 ft to the left of AC and 2 ft above BC. Determine the horizontal reaction that is developed on..
Write a balanced net equation for the reaction of the hydrogen ascorbate anion with water where hydrogen ascorbate acts as an acid.
(a) Use differentiation to find a general expression for the rocket's velocity as a function of time, (b) When is the velocity zero?
Water with a static pressure of 1.96kN/M 2 flows through an 800 mm diameter pipe. A pitot tube pressure gage in this pipe reads a pressure of 5.88 kN/M 2 . How do you determine the volume flow rate (Q) of the water? (Q = 1.40 M^3/sec, V=2.79 M/se..
The initial schedule called for 500 feet of pipeline to be installed each week, with the total construction cost projected to be $25 million. After 8 weeks, 4750' of pipeline has been installed at a cost of $11.25 million.
A corporation issues a new 10 year bond that has a coupon rate of 4.65% with quarterly dividend payments. Alex purchases 200 of these bonds at a price of $98.75, for a total investment of $19,750. Assuming he holds them to maturity, what will be h..
The position of a particle P moving in the horizental plane is described by r(t)= (5t^2 i +2te^0.1t j) m. Find the magnitude of the particle's position, velocity, and acceleration at time t=2 sec.
A 4000-m 3 /day conventional activated sludge plant has an influent with a BOD5 of 190 mg/L and SS of 225 mg/L. What population would this plant serve?
Also calculate the deflection of the beam to check that it complies with the design limit of L/200. Only variable actions are required for deflection check.
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