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Compare the shakedown limits for pure rolling (no friction) with those for tractive rolling (with a high friction coefficient). Which is higher? Why?
Determine the internal energy change Δu of hydrogen, in kJ/kg
Calculate the approximate alkalinity (in mg/L as CaCO3) of a water containing 120 mg/L of bicarbonate ion and 15 mg/L of carbonate ion.
what are the main points which create necessity of new railway line? explain in detail different types of surveys conducted in railway work.
In order to move a wrecked truck, two cables are attached to the truck at A and pulled by winches B and C as shown. Determine the components and magnitudes of the vectors AB and AC
Determine the number of man-hours required to form the structure using data from R. S. Means or other appropriate reference. What is the difference between labor cost and labor pro-ductivity?
A driver on a leveltwo-lane highway observes a truck completely blocking thehighway.The driver was able to stop her vehicle only 20 ft. fromthe truck. If the driver was driving at 60mph, how far was she fromthe truck when she first observed it?
A maximum flow rate of 6 CFS is available for a river model. This corresponds to 30,000 CFS for the prototype. What is the scale of the model in terms of the prototype size
Two factories are manufacturing and supplying a single type of good to four warehouses. The factories can produce a1, and a2 units of the good each month, and the warehouses need b1, b2, b3, and b4 units each month, The monthly total of goods availab..
A culvert is to be constructed in a bed of sand (e = 0.5) for drainage purposes. The foof of the culvert will be located 3 m below ground surface. Currently the groundwater level is at ground surface.
A satellite would have a mass of 200 kg on the surface of the moon. Determine the weight of the satellite in pounds when it is in orbit 10,000 mi. above the surface of the earth.
In a large university computing center, on average there are 10 service calls per day. A computer technician can handle on average 5 service calls per day. The cost of adding a technician
The total stopping distance for a car traveling at 50 mph is 461 feet, including the distance traveled during a 2.5 second perception-reaction time. What is the perception-reaction distance? What is the braking distance of this same car?
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