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A force is specified by the vector F = [(10)i + (150)j + (-50)k] N. Calculate the angles made by F with the positive x-, y-, and z-axes
Diesel fuel has an average chemical formula of C12H23 and a density of 6.45 lb/gal. Calculate how many lbs of CO2 are produced per gallon of diesel burned (assume complete combustion).
Determine the specific surfaces in m2/g units for the spheres of diameters (a) 10.0 cm, (b) 1.0 cm,(c) 0.1 cm, (d) 0.01 cm. (e) 0.001 cm and (f) 0.0001 cm. Assume the mass density of spheres as 2.5g/cc.
Estimate the machines production under these conditions using the travel time curves given in the Caterpillar Performance handbook.
If design is needed, use a W-built-up cross section; select the W section and the thickness of the plate. Calculate Cc and use the AISC equations E2-1 and E2-2 to determine the allowable stress for each axis and ultimately the allowable load for t..
a job requires excavating and hauling 500 cyds (in situ) of sandy soil. in your posession is an excavator and a dump truck (capacity 30 cyds loose) the dump truck has a round trip travel time of 5 mins and 45 secs to the dump site and back.
The cost of extending a certain road is $850,000. Resurfacing and other maintenance are expected to cost $175,000 every 3 years and lasts for 96 years. What is the present worth of the road at an interest rate of 6% per year (over that period)
Samples of 20 rivets for a steel structure are checked for quality every hour. The probability of finding a bad rivet that has to be scrapped is 1%.assume that x is the number of parts in the sample of 20 that have to be scrapped.
A U manometer reads 20 cm air as operating fluid and a given manometric fluid. A single branch closed tube reads 35 cm connected to point 1. If P2 = 1.2 ATM calculate the pressure in point 1 and the density of the manometric fluid.
A coin is tossed and a single 6-sided die is rolled. Find the probability of landing on the head side of the coin and rolling a 3 on the die.
A cylindrical sample of soil 39 mm in diameter and 77 mm long weighed 180 g. The sample is not fully saturated and its moisture content was found to be 27.0%. Assume rS = 2.70 Mg/m3. Determine: a. the bulk density, r b. the dry density, rd c. the d..
A bag of potatoes is sitting on the chair. The force exerted by the potatoes on the frame at one side of the chair is equivalent to horizontal and vertical forces of 24 N and 84 N, respectively, at E and a force of 28 N perpendicular to member BH ..
suppose helen deposits $4000 today and one year from today she deposits $1000. Each year she increases her deposit by $500 until she makes her last deposits on roberta's 18 birthday. how much is on deposit after the 18th birhday
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