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A firm's stockholders expect a 15% rate of return, and there is a $12M in common stock and retained earnings. The firm has $5M in loans at an average rate of 7%. The firm has raised $8M by selling b
Lake Pleasant, AZ, has a surface area of approximately 2,000 ha. The inflow for the month of August is zero. The lake is dammed so that no water leaves the impoundment downstream of the dam. There i
How many tons of asphalt concrete will be required to overlay a 3-mile-long, 24-ft.-wide road with 2.5 in. of wearing course asphalt concrete that has a density of 146.3 pcf
A lab test for specific gravity, G, on two samples of lumber indicate that sample A has G= 0.4 and sample B has G= 0.9. Based on this information alone, which wood sample would you choose as a struc
Using the phi index calculated in part c, determine the volume of direct surface runoff (acre-ft) that would result from the following: hour: 1,2,3,4 ; intensity (in/hr): 0.40,0.05,0.30,0.20. phi in
Determine a composite SCS runoff curve number for a 600-acre basin that is totally within soil group C. The land use is 40 percent contoured row crops in poor hydrologic condition and 60 percent nat
The atmosphere is stable with a lapse rate of -0.2C/100m. The surface air temperature is 15C. A parcel of air is released at the ground with a temperature of 25C. Calculate the maximum mixing height
compute the critical buckling load for a 2.5m timber column of full size square section 0.10m x 0.10m. The column has pinned ends(k=1). Assume the modulus of elasticity is 12Gpa and that the Euler f
On a single graph, show how the Gibbs energies of each of these phases vary with temperature between - 20 C and 150 C for a constant pressure of 80 kPa. You can start your computations at the triple
Consider a steel (iron) with 0.2 wt% C. Describe the changes in phases and its structure as it is heated under equilibrium conditions to 850 (deg C).
Three shafts and four gears are used to form a geartrain which will transmit 7.5 kW from the motor at A to a machine tool at F. (Bear- ings for the shafts are omitted from the sketch.) Knowing that
A steel tube has an outside diameter of 2.5 inches and an inside diameter of 2.375 (1/8" thick). If it transmits 35 hp when turning at 2700 rpm, what is the maximum shear stress
A 2-inch by 2-inch solid steel beam (18 inches long) is fixed to the wall at the left to resist applied moment (20,000 lbs-inch). What would the deflection be at the right end Up or down
Determine the maximum force (P) that can safely applied to a steel tee section (20 feet in length) with the point loads at 5 feet from each end. Fixed at one end, pin at the other.
A rigid beam (AB), 12 feet in length, with a point load of 9 kips (4 feet from A) is resting on two short steel rods (AC & BD). Diameter of Rod AC is 1 inch, Rod BD diameter is 2 inches.
Determine the minimum horizontal force necessary for 200 lb man to scale crevice (using his feet and back). The coefficient of static friction between his shoes and his back against the wall is 0.4.
A single screw extruder is being used to process pregelatinized starch. The screw dimensions are as follows: channel width 3 cm, channel height 0.5 cm and screw length 50 cm. The wall velocity is es
The tunnel is supplied with 1500 kg dry air/h at 50°C and 10% RH, and the air leaves at 25°C in equilibrium with the product at 50% RH. Determine the moisture content of product leaving the
The upstream invert is at an elevation of 8ft and the downstream invert 4 ft. If the depth at the upstream end of the culvert is 8 ft, what is the flow through the culvert. Assume the culvert is in
Find the volume of the solid S. The base of S is the region enclosed by the parabola y=4-3x^(2) and the x-axis. Cross sections perpendicular to the y-axis are squares.
What should be the length of an aluminum wire of 6 mm in diameter so it can be twisted one full turn without exceeding a shear stress of 42 MPa G = 27 GPa.
Compare the maximum shear stress and the angle of torsion for members of equal lengths and cross-sectional areas with square, rectangular and circular section. All members are subjected to the same
A girder that carries a uniformly distributed dead load of 1.7 K/ft plus its self-weight and three concentrated live loads of 15 kips at quarter points of that 36 ft span is to be sized.
An aluminum alloy rod has a circular cross section with a diameter of 8 millimeters. This rod is subjected to a tensile load of 4 kN. Assume E=69 GPa. What will be the lateral strain if Poisson's ra
the motorcycle is traveling at 1 m/s when it is at A at the bottom of the ramp. If the speed is then increased at v=0.1 m/s^2, determine its speed and acceleration at the instant t=5s