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material (LCY) in 12 yard dump trucks, placing it, and compacting the weight of the soil is 3,750 lb/cu.yd. (30 pts.) (show your calculations) a) Find the Swell and Shrinkage b) Load and Shrinkage Fa
Find the minimum length of runway required for the landing (I found to be 300ft). Find the position on the runway where the speed is 50ft/s and the time it takes for the speed to reach 50ft/s
The acceleration of a particle is defined by the relationship a=-kx^-2 ft/s^2, where x is in feet and k is a constant. At x(0)=0.1ft, v(0)=0 and at x(1)=1ft, v(1)=10ft/s. Find the velocity at x=5ft.
Due to atmosphere drag, the deceleration equation is 60a=588.6-30v^2 in m/s^2. Find the velocity at which he lands on the ground. This velocity is referred to as terminal velocity, which is found by
A pickle producing plant produces and discharges a waste brine solution with a salinity of 13,000 mg/L NaCl at a rate of 0.14 MGD into a stream. Before the discharge enters the stream, the flow rate
At the instant shown, car A has a speed of 20 km/h, which is being increased at the rate of 300 km/h2 as the car enters an expressway. At the same instant, car B is decelerating at 250 km/h^2 while
A galvanized (zinc-coated) steel sheet is found to uniformly corrode with an average current density of 1.4 X 10-7 A/cm2. How many years will it take to uniformly corrode a thickness of 0.030 mm of
An investor has invested $250,000 in a new rental property. Her estimated annual costas are $6,000 and annual revenues are $20,000. What rate of return per year will the investor make over a 30-year
How have the recent changes in information technology affected society? Are these changes for the better, the worse, or both?
A machine costs $20,000 and has a 5-year useful life. At the end of the 5 years, it can be sold for $4,000. If annual interest is 8%, compounded semiannually, what is the equivalent uniform annual c
(1) To provide $750000 for th construction and $250000 for the initial equipment of a small engineering laboratory ; (2) to pay the $150000 per year laboratory operating cost; and (3) to pay for $1000
Annual maintenance cost for a particular section of highway pavement are $2000. The placement of a new surface would reduce the annual maintenance cost to $500 per year for the first 5 years and to
For a car traveling 35 mph the distance required to brake for a stop is normally distributed with mean of 55 feet and standar deviation of 8 feet. You are traveling 35 mph in a residential area and
Given that the moduli of electricity of this material are respectively 69GPa and 393 GPa plot modulus of elasticity versus the volum percent of Al2O3 in Al from 0 to 100 vol % using both upper and l
What is the largest circle that can be inscribed within a polygon with corner coordinates (600,800), (900, 300), (500, 100), and (100, 40) Find the radius of the largest circle and show how you foun
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.
The number of telephone call coming in the business switchboard average 4 minutes/call. Let x be the number of calls received, Poisson variable. a. What is the probability there will be at least one
A company manufactures a brand of light bulbs with a lifetime in month that is normally distribute with a mean=3 and a variance=1. A consumer buys a number of these bulbs with the intention of repla
a pump is used to send water from one reservoir to another elevated reservoir. The pipe diameter is 0.120 m. The head-loss through the valve and pipe is given by equation hL =Bv12 2g
The shovel's production at a 100% efficiency is estimated to be 300 BCY/h. and efficiency is 0.80. Truck travel time is estimated to be 8.0 minutes, and truck fixed cycle time (excluding loading ) i
The relative roughness ofa pipe is 0.0005, if the blasius equation is applicable for Thecflow Reynolds number above 2700 rather then 3000<Re<10^5 what will be the new exponent of the blasius
The company expects to spend $100,000 per year for labor and $125,000 per year for supplies before a product can be marketed. At an interest rate of 15% per year, what is the total equivalent future
If the systems will reduce insurance claims by $100,000 two years from now, how much should the company be willing to spend now, it is uses an interest rat of 12% per year
if the discharge from a 90 degree V-notch weir fills a 20 L vessel in 54 seconds and produces a stage of 30mm upstream of the weir crest, what would the weir coefficient be