1.A municipal landfill has available space of 16.2 ha at an average depth of 10 m.seven hundred sixty-five (765)m^3 of solid waste is dumped at the site 5 days a week. This waste is compacted to twice its original density

2.Are the elemental semiconductors silicon and germanium transparent to visible light? Why or why not?

3.Which of the following oxide materials when added to fused silica (SiO2) will increase its index of refraction: Al2O3, TiO2, NiO, MgO? Why?

4.Electromagnetic radiation may be treated from the classical or the quantum-mechanical perspectives. Briefly compare these two viewpoints.

Determine the minimum length of a crest vertical curve if : Determine the minimum length of a crest vertical curve if the grades are +4% and -2%, Design speed is 70 mi/h. State assumptions used in solving this problem. |

Gregory and lulu clifden tax problem : Gregory and lulu clifden tax problem - Gregory R. and Lulu B. Clifden live with their family at the Rock Glen House Bed & Breakfast, which Gregory operates. |

Explain why a clay once having been fired at an elevated : The thermal conductivity of a single-crystal ceramic specimen is slightly greater than a polycrystalline one of the same material. Why is this so? |

Do any of these three wells exceed the 44.3 ppm level : Nitrate concentrations exceeding 44.3 mg NO3-/L are a concern in drinking water due to the infant disease, methemoglobinemia. Nitrate concentrations are often recorded in units |

Are the elemental semiconductors silicon and germanium : Electromagnetic radiation may be treated from the classical or the quantum-mechanical perspectives. Briefly compare these two viewpoints. |

How the extent of marten site formation may be increased : Name the three factors that influence the degree to which martensite is formed throughout the cross section of a steel specimen. For each, tell how the extent of martensite formation may be increased. |

What is meant by the concept of parens patriae : What is meant by the concept of parens patriae? |

What must be the density of the gas at that section : Gas flows at a steady rate in a 120-mm-diameter pipe that enlarges to a 180-mm-diameter pipe. At a certain section of the 120-mm pipe the density of the gas is 165 kg/m^3 and the velocity is 15 m/s. |

Find the stress in the steel and the stress in the concrete : A 14-in. square concrete post is 6ft tall and reinforced by nine 3/4" diameter steel rods. Assume that the materials are high-strength concrete and ASTM-A36 structural steel. |

## Prove that the forces are equal and that the lines of actionthis cuts it down to a single force that you have to solve for, regardless of what type of member it is. Prove that the forces are equal and that the lines of action are along an angle theta. HINT: Use to do equations of equilibrium. |

## Calculate as many principal or maximum strainsa point within an elastic body was subjected to a system of planestress. strain gauges were used to measure that would allow for thecalculation of principal strain and stress values at that point.with the given information |

## Determine the corresponding value of the normal stressa 60 -m- long steel wire must not strech more than 48mm when the tension in the wire is 6 kn. determine the corresponding value of the normal stress. |

## Determine the unit strain developed in the concretea concrete test cylinder is loaded with p= 100k (445 kn) and resulting shortening of 0.036" (0.0914 mm). determine the unit strain developed in the concrete. |

## What flow rate of fresh water must be used to reduce saltOn the property they found a 20,000 m3 brine pond containing 25,000 mg/L of salt. The new owners propose to flush the pond into their discharge pipe leading to the Atlantic Ocean |

## Determine stress in member immediately after load is appliedYou 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. |

## The most famous geyser in the world old faithful inthe most famous geyser in the world old faithful in yellowstone national park has a mean time between eruptions of 85 |

## Calculate the time of flight of the boltCalculate the time of flight of the bolt from the ceiling tothe floor. Assume that the elevator continues its upward acceleration. (Use a frame reference fixed with respect to the elevatorshaft) |

## Calculate the torque and torsional shearing at the walla 31' solid circular bar of 2" diameter is fixed to a wall. it is made of aluminum of E=10*10^6. a 30" circular solid 1" diameter aluminum bar is welded to the 2" bar at a 30" centerline perpendicular relative to the other bar per the diagram. |

## Number of completely mixed bioreactorsDetermine the number of completely mixed bioreactors (detention time of 45 min each) that would be required to meet the phenol discharge limit of 5 mg/L. The first-order removal rate constant is equal to 6.1 hr -1 |

## Compute the normal depth with a bottom widthA trapezoidal channel with a bottom width of 4 feet and side slopes 2:1 (H:V) and a bed slope of 1 percent conveys a discharge of 50,000 gpm. Assume n = 0.025. Compute the normal depth |

## Find speed and direction of each section relative to earthA two stage rocket with a total mass of 925kg is traveling at a speed of 6.6 10^3 m/s away from the earth . A predesigned explosion separates into two sections of equal mass that move with a speed of 2800m/s relative to each |

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