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CARP, Inc. wants to evaluate two methods of shipping their products. The following cash flows are associated with each alternative:
Data A |B
life(years) 10 |10
first cost $700,000 |$1,512,000
M&O $18,000 |$9,000
M&O gradient $900 |$775
Annual benefit $154,000 |$303,000
salvage value $142,000 |$210,000
Annual rare based on amount of products which can ordinarily be shipped each year as a function of the amount of vehicles or service purchased with the first cost and the M&O costs. Using a MARR of 15%, calculate the equivalent uniform annual cash flow (EUAB-EUAC) for each alternative; determine the most desirable alternative based on the results.
A 25 mm diameter steel cylinder falls under its own weight at a uniform rate of 0.1 m/s inside a tube of slightly larger diameter. Castor oil of viscosity 0.25 N.s/m2 fills the spacing between the tube and the cylinder.
The post is embedded into a concrete footing so that it is fixed supported. If the reaction of the concrete on the post can be approximated by the distributed loading, determine the intensity of w1 and w2
A large drainage channel has a trapezoidal cross section with a bottom width of 75 feet and bank side slopes of 4:1 (H:V). If the normal depth of flow is 25 feet, compute the normal flow rate through the channel (Q in cfs).
Determine the force members BC, FC, and FE, and state if the members are in tension or compression.
If vehicle arrivals at the lot follow a poisson process, with arrival rate lambda = 0.2 vehicles/hour, what is the probability the lot is full at 9:15 AM. Assume that no one leaves during this period.
Cylindrical, steel bar stock (density = 7833 kg/m3, Cp = 0.465 kJ/(kg C)) of 10-cm diameter is heat-treated by drawing it at a velocity of 3 m/min through a 6-m-long furnace maintained at 900C.
Treatment plant was designed for 9 MGD. It is currently processing 13 MGD. Your task is to assess the expected treatment performance of the primary clarifiers. There are two clarifiers 45 feet in diameter.
A) calculate the steady state P concentration in the lake B)Creek A has been identified as the easiest to control. What would the P concentration have to be reduced to in Creek A, in order to reduce the concentration in the lake below 0.025 mg/l
A surveyor is going to take a 5.5 mile sight across a lake from the top of one tower to a target on the top of another tower. It is desired to keep the line of sight 6 ft above the lake surface.
The specific yield of an unconfined aquifer is Sy = 0.15. How much, on average, would the water table need to be lowered (in m) in an area of 2.5 km^2 to release 6.5 x 10^5 m^3 of water from storage in this aquifer
a low rate trickling filter plant gives 95% BOD5 removal. the primary clarifier removes 33% of the BOD5 applied to it. the secondary sludge amounts to 0.029lb dry solid/cap-day. if the raw wastewater has a BOD5 of 0.17lb/cap-day.
Trips can be classified by productions/attractions or origins/destinations. Which classification provides the direction of travel. Describe the product/outcome (e.g., production-attraction matrix) after each of the 4-step transportation planning pr..
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