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A 2000-pound, counterbalanced, propane forklift can be purchased for $30,000. Due to the intended service use, the forklift's market value drops 20% of its prior year's value in Years 1 and 2 and then declines by 15% until Year 10 when it will have a scrap/market value of $1000. Maintenance of the forklift is $400 per year during Years 1 and 2 while the warranty is in place. In Year 3 it jumps to $750 and increases $200 per year thereafter. What is the optimal life of the forklift (in years)?
The 3.5-Mg engine is suspended from a spreader beam having a negligible mass and is hoisted by a crane which exerts a force of 40 kN on the hoisting cable. Determine the distance the engine is hoisted in 2.4 s, starting from rest.
The number of teleport inquires x in a time sharing system average .2 millisecond and follows a Poisson distribution. Find the probability at least one inquiry is made during the next millisecond.
Water with a static pressure of 1.96kN/M 2 flows through an 800 mm diameter pipe. A pitot tube pressure gage in this pipe reads a pressure of 5.88 kN/M 2 . How do you determine the volume flow rate (Q) of the water? (Q = 1.40 M^3/sec, V=2.79 M/se..
The height (in meters) of a projectile shot vertically upward from a point 2 m above ground level with an initial velocity of 24.5 m/s is h2+24.5t-4.9t^2 after t seconds. a) When does the projectile reach its maximum height? b) What is the maximum..
The VMA of a mixture is 15.0% and the air voids are 4.0%.If the aggregate has a specific gravity (bulk dry) of 2.700 g/cm3 and percent binder absorbed (by the mass of aggregate) is 0.5%, calculate the asphalt content by weight of mix.
Also determine the bending moment atthe bottom of its pole whose height from the graound to the bottomof the sign is 1.5 m. Disregard the drag on the pole.
Consider the design of wastewater treatment plant for a community wiyh average daily and peak hourly wastewater design flows of 2.0 mgd. The raw sewage has an average of 230 mg/l BOD5 and 260 mg/l of suspended solids.
the 30 ft simple beam shown has lateral support spacing at 15 ft for its compression flange and consists of 50 ksi steel. the beam supports a gravity service dead load of 1.2 klf (includes beam weight) and a gravity live load of 3.4 klf
what are biosynthetic pathways in cells A) anabolic B) catabolic C) usually produce more atp than they consume D) release monmorsinto the cytoplasm
Steam enters a nozzle at 400oC and 800 kPa with a velocity of 10 m/s, and leaves at 300oC and 200 kPa while losing heat at a rate of 25 kW. For an inlet area 0f 800 cm2, determine the velocity and the volume flow rate of the steam at the nozzle ex..
Is it possible to have a copper-silver alloy of composition 50 wt% Ag-50 wt% Cu that at equilibrium, consists of α and β phases having mass fractions Wα = 0.60 and Wβ=0.40
Determine how many buses needed to provide service on the following route with the indicated characteristics: -Route length: 16 miles (one way) -Headway: 15 minutes -Average number of stops made during run, one direction: 22
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