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Problem 1: A small truck with a center of gravity at X=2.5ft and Y=6ft is traveling on a circular path of radius R=400ft and e=4% where e=rate of superelevation. Determine the maximum safe speed to avoid both slipping and overturning.
Problem 2: School buses are claimed to be a traffic blessing, especially during the morning peak hours. Assuming that the morning trip is composed of: 70% work trips and others 20% educational trips using school buses carrying 60 students each (1 bus=2.5 EPC) 10% other purposes Also assuming that the replacement for school bus is a " ride sharing minibus".
For the eccentric shear loading of the accompanying figure, 7/8 inch diameter A325 bolts are used in two vertical lines in a bearing-type (A325-X) connection. The loading is 10 kips dead load and 30 kips live load.
Imagine a community for which its first roundabout is being built, something that is a relatively recent occurence even in this area. As the Director of Public Works for the community, how might you educate the members of the community?
Vehicles arrive at a toll bridge at a rate of 430 veh/hr (the time between arrivals is exponentially distributed) Two toll booths are open and each can process arrivals (collect tolls) at a mean rate of 10 seconds per vehicle
Find the cooling load (in tons of refrigeration) for a room supplied with 10,000 CFM of 95 DB outside air with ratio of 105 gr/lb. The room is to be maintained at 78 DB and humidity ratio of 71.5 gr/lb. The room calculated sensible heat load is 108,0..
Determine the deflection of a simple uniformly loaded beam by the Ritz method,using first one term, then two terms, adn finally three terms in a sine series. Why does the coefficient of sin2piex/L vanish?
a draw the free-body diagrams for the entire assembly or structure and each of its parts. neglect friction and the
The wet mass of a sample of saturated soil is 520 grams. The dry mass, after oven-drying, is 400 grams. Determine the a) water content b)void ration c)saturated unit weight, and d)effective unit weight
The area of a parking lot is calculated to be 5,474 ft^2 with an estimated standard deviation of 2 ft^2. What is the maximum anticipated error? there is a 90% chance that the error range will be what?
Compute the nodal equivalent force vector that corresponds to the particular variation of the tractions - find the displacement of the midpoint of the rod shown in the Figure. Assume A=E=1 and body force per unit volume g=1. Discuss the solution.
calculate the ratio of the area to volume for unit cube,a unit sphare inscribed inside the cube,and as right cylinder inscribed inside the cube.
An SAE steel wire (1mm diameter) is coated with another cover to form a composite material with diameter of 2 mm. a) determine the elastic modulus of the composite material;
Soil is excavated from a borrow to construct an embankment with a net volume of 50,000 cy. This is performed by compacting 12-in layers of the soil to a dry weight of 110 pcf at a moisture content of 18%.
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