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A wheel tractor-scraper is operating on a level grade, assuming no power derating is required for equipment conditions, altitude, and temperature.
Disregarding traction limitations, what is the maximum value of rolling resistance (in lb/ton) over which the fully loaded unit can maintain a speed limit of 15 mph?
What minimum value of coefficient of traction between the tractor wheels and the traveling surface is needed to satisfy the requirements of part A? For the fully loaded condition, 52% of the weight is idstributed to the drive axle. Operating weight of the empty scraper is 74,946 lb.
A rectangular channel is 25ft wide and has a flow of 500 cfs at a velocity of 5ft/s. (a) Determine the specifc energy of water in the channel. (b) What is the criticl depth of water in the channel (c) What is the critical velocity
In my english class i have to write a propasl, and i choose to write a proposal on the libray doors at my school. the doors are very difficult to open even for young people like my self. who should i contact
The rigid bar abcd is supported by a pin at B and restrained by identical steel bars at C and D, each of area 250mm 2 . if the temperature is increased by 8 0 C, find out the force P that will cause the bar at c to be stress-free.
Data obtained from aerial photography showed six vehicles on a 600 ft long section of road. Traffic data collected at the same time indicated an average time headway of 3.6 sec.
Using the stress transformation equations only,given a stress state where sigma x=105 MPa,sigma y=75 MPa and tau xy=25 MPa, determine the stresses acting on an element oriented at an angle 40 degrees from the x axis.
A gas stream contains 18.0 mole% hexane and the remainder nitrogen. The stream flows to a condenser, where its temperature is reduced and some of the hexane is liquefied. The hexane mole fraction in the gas stream leaving the condenser is 0.0500.
A rod of steel is 20 m long at a temperature of 200C. find the free expansion of the rod when the temperature is raised to 65 0 C. Find the temperature stress produced
the circular top of a can has a radius of .0320m. the pull-tab has an area of 3.8x10^-4 m^2. the absolute pressure of the carbon dioxide in the can is 1.40x10^5Pa. find the force that these gas generates on the top of a can?
Assume that the cord used in a bungee jump behaves like a linear spring when it is stretched with a spring constant of 80 lb/ft. A 180 lb student is going for a bungee jump off the Canyon Creek bridge in Washington state.
For a cement paste with an initial water-cement ratio of 0.5, by mass, calculate the mass and volumetric composition of 1 cm^3 of HCP under both wet and sealed curing conditions.
Farah Manufacturing wants it's investments to double in value in 4 years, what rate of return would it have to make on the basis of (a) simple interest (b) compound interest
a car is traveling at sea level at 78 mi/h on a 4% upgrade before the driver sees a fallen tree in the roadway 150 feet away. the coefficient of road adhesion is 0.8. The car weighs 2700 lbs, has a drag coefficiant of 0.35, a frontal area of 18 ft..
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