Traffic Flow and Queuing Theory.

Vehicles leave an airport parking facility (arrive at parking fee collection booths) at a rate of 500 veh/h (the parking facility has a policy that the average time a patron spends in a queue waiting to pay for parking is not to exceed 5 seconds. If the time required to pay for parking is exponentially distributed with a mean of 15 seconds, find the average time in system.

What is the dry unit weight of this material : A soil borrow material in its natural state in the ground has a unit weight of 118pcf. Its natural water content is 7%. What is the dry unit weight of this material? |

Determine what happens to chocolate consumption : Assume we observe the following: Qt = 5; pc = 2; pt = 2. If the price of textbooks doubles, by how much does the income have to increase to keep the textbook consumption constant What happens to chocolate consumption Explain. |

Determine the total resultant force : in inclined circular gate with water on one side shown in the figure. determine the total resultant force acting on the gate and the total location of center pressure. |

During world war I the united states used naval vessels : During World War I the United States used naval vessels |

Find the average time in system : If the time required to pay for parking is exponentially distributed with a mean of 15 seconds, find the average time in system. |

Determine the required pumping rate : Determine the required pumping rate. the aquifer has T= 1600 m2/day and the wells each have radius of influence of 600m. |

Explain when a system is in a state of chemical equilibrium : When a system is in a state of chemical equilibrium, a state of apparent rest, is anything going on at the molecular |

Compare and synthesize the research : The objective is to integrate, compare and synthesize the research so that you are looking at the same question on different dimensions and with different tools. This is how research is done. |

During world war I-civil liberties : During World War I, civil liberties in America were |

## Calculate the deflection of the beamAlso calculate the deflection of the beam to check that it complies with the design limit of L/200. Only variable actions are required for deflection check. |

## Power developed by the force for a blockThe block has a mass of 150 kg and rests on a surface for which the coefficients of static and kinetic friction are 0.5 and 0.4, respectively. If a force F = (60t^2) N, where t is in seconds, is applied to the cable, determine the power developed .. |

## Elevation of the road at stationGiven the following data for a vertical curve of a road; G1=-2.5%, G2=+5.5% and station of PVI=250+50.At station 252+50, the vertical curve must intersect an existing road at elevation 48.48ft. the elevation on the tangent section at station 256+5.. |

## Estimate the undrained shear strength of clayPlot variation with depth from the top to Point C for σ' v and σ h when the soil is at rest and Estimate the undrained shear strength (c u ) of clay. (Assume the shear strengths to be 200 kPa and 2 kPa at Liquidity Index (IL) values of 0 and 1, res.. |

## Find the steady-state concentration of pollutantThe pollutant has a reaction rate coeeficient k of 0.25/day. Assuming is pollutant is well mixed in the lake, find the steady-state concentration of pollutant in the lake. |

## Spreader beam and hoisted by a craneThe 3.5mg engine is suspended from a 500 kg spreader beam and hoisted by a crane which gives it an acceleration of 4m/s^2 when it has a velocity of 2m/s. determine the force in chains AC and AD during the lift. |

## Estimating the volume of soil in cubic metersThe void ratio of soil in the borrow pit is 1.12. Estimate the volume of soil (cubic meters) that must be excavated from the borrow pit. |

## Calculate the longitudinal and transverse stressesCalculate the overall modulus of the composite, explaining your calculations and the assumptions you have made when it is loaded: |

## Explain light-voice controlling systemLight-Voice Controlling System. We are planning to design a new light-voice controlling system. The voices will basically coordinate the crossing of a road by blind people. Suppose the crossing will be operated by two coordinated systems |

## Explain some of the benefits of physical models and mock-upsDescribe some of the benefits of physical models and mock-ups. What data are required to measure the following cost-effectiveness, system effectiveness, operational availability, and life-cycle cost? |

## Aggregate in the wheelbarrow weightYou fill a 2-cubic foot wheelbarrow to the top with aggregate. if the specific gravity of the aggregate is 2.548 and 18% of the aggregate is void spaces, how much does the aggregate in the wheelbarrow weight? |

## Horizontal distance between the pointsA runs slope a distance of 156.777 m from one point to another point at a rate of +1.5%. What is the corresponding horizontal distance between the points? |

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