If a plus sight of 1.097 m is taken on BM A, elevation 312.547 m, and a minus sight of 0.832 m is read on point x, calculate the HI and the elevation of point x.

Which material will be cheaper if you want factor of safety : A structural tension member of 10 ft. long with a square cross-section is subjected to a load of 120,000 lb. There is a choice between an aluminum alloy and structural steel, with the following information given for each. |

Determine the angle of twist of gears a and c : The 60mm diameter shaft ABC is supported by two journal bearings, while the 80mm diameter shaft EH is fixed at E and supported by a journal bearing at H. If T1= 2 kN*m and T2= 4 kN*m |

Explain ha is a weak monoprotic acid : If 67.0 mL of 0.119 mol/L NaOH(aq) and 35.0 mL of 0.193 mol/L HA(aq) are mixed, then what is [HA] at equilibrium? Assume that HA is a weak monoprotic acid with pKa=6.23 at 25oC. |

One of the scarce resources that constrain our behavior is : How do you go about weighing the alternatives? Once you choose a most important use of time, why do you not spend all your time on it? Use the notion of opportunity cost in your answer. |

Calculate the hi and the elevation of point x : If a plus sight of 1.097 m is taken on BM A, elevation 312.547 m, and a minus sight of 0.832 m is read on point x, calculate the HI and the elevation of point x. |

What is the angular acceleration of the rod : A rod of length l and uniform mass m is hinged at its lower end while it was held at rest in a vertical position. What is the angular acceleration of the rod during the fall for a given theta |

Determine stress in member immediately after load is applied : You are analyzing a polymer uniaxial tension member used in a lightweight structure. The bottom of the tension member is fixed and the top has a tensile force F = 10,000 pounds on it. |

What is the stress in the copper cube : A cube of copper with each edge having the dimension 12.7 mm, is put in a vise and squeezed by a force of 215 N exerted by either side of the vise. What is the stress in the copper cube |

A decrease in aggregate supply, with no change in aggregate : Assume that (a) the price level is flexible upward but not downward and (b) the economy is currently operating at its full-employment output. Other things equal,how will each of the following affect the equilibrium price level and equilibrium level o.. |

## Probability of pulling out vehicle at oncoming trafficAssuming a standard driver reaction time of 2.5 seconds, what is the probability that the vehicle pulling out will get in an accident with oncoming traffic? |

## Determine what is the definition of critical statewhat is the definition of critical state. explain at which stage a critical state may be approached in a drained triaxial text on a overconsolidated clay using stress path and strain-strain plot. |

## Determine the probability that ball is whiteBox I contains 3 red and 5 white balls, while Box II contains 4 red and 2 white balls. A ball is chosen at random from the first box and placed in the second box without observing it's color. Then a ball is drawn from the second box. |

## Determine what size motor-horsepower is required for mixerA chemical mixing basin is to be designed to blend chlorine and treated wastewater. The basin flow is 700 gallons per minute and the basin dimensions are 5 feet by 5 feet by 5 feet water depth. |

## Calculating the ph of solutionA 1.50 L buffer solution is 0.250 M in HF and 0.250 M in NaF. Calculate the pH of the solution after the addition of 0.0500 moles of solid NaOH. Assume no volume change upon the addition of base. The Ka for HF is 3.5 x 10 -4 . |

## What is the break-even number of units per yearA semiautomated system has been developed as an alternative. The costs for the proposed method are $40,000 for equipment and $1.00 per manufacturing cost per unit. What is the break-even number of units per year |

## Determine the maximum efficiency of the cycleA geothermal power uses hot water (185oF) as a heat source and the cold water from a close by lake (60oF) as a heat sink. The basic operating system is a close loop ammonia efficiency of the cycle that powers turbine-driven electric generator (100.. |

## How to determine the rating curve of the spillwayConsider a 75-ft wide overflow spillway with no piers and a design head of 18 ft. The crest elevation of the spillway is 2400 ft and the streambed elevation just upstream of the spillway is 2350 ft. |

## Determine force p required to move wedge under the postDetermine the force P required to move the wedge under the post. The coefficient of static friction between all surfaces is 0.25. The applied force F is 200 lbs and the angle alpha is 15 degrees. |

## Plot the do from point of discharge to 20 days downstreamThe river characteristics just upstream of the wastewater discharge are: flow = 7.5 m3/s, BOD = 5.5 mg/L, DO = 90% of saturation, and temperature = 25oC. For this water, kd = 0.18 d-1 and kr = 0.22 d-1. |

## Determine what is the maximum flowrate in the businessA business wishes to discharge salt into a river. the concentration of salt from the business is 210 mg/L. the flow of water in the river (upstream) is 0.5 m^3/s. Upstram the concentration of salt in the river 15 mg/L. |

## Explain whether the project is economically stableAdditional cost at the end of year 1 = $50,000. Benefit at the end of year 1 = $0. Annual benefits at the end of Years 2-10 = $20,000. Interest Rate = 7%. Conventionally B/C ratio and wheter the project is economically stable. |

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