**Question 1**

Which of the two walls in Figure As 1 gives the large horizontal force? Show your calculations).

**Question 2**

The drainage system of a cantilever wall shown in Figure As 2 became blocked after a heavy rainstorm and the groundwater level, which was originally below the base, rose to1.5 (m) below the surface. Determine the stability of the wall before and after the rainfall. Neglect seepage effects.

Compute the bullets speed just before impact : A uniform thin rod of length 0.40 m and mass 3.0 kg can rotate in a horizontal plane about a vertical axis through its center. what is the bullet's speed just before impact |

Calculate the additional stress as a function of depth : Calculate the additional stress as a function of depth that a temporary construction wall , like that shown in Figure As 1, must take as the result of a crane sustained in the zone above it. |

Explain methylene chloride as the developing solvent : Which of the following two compounds, anisole or toluene, would have a larger Rf value using silica gel plates and methylene chloride as the developing solvent and why |

Calculate the structures rotational inertia about the axis : a rigid structure consisting of a circular hoop of radius R and mass m, and a square made of four thin bars, each of length R and mass m. calculate the structure's rotational inertia about the axis of rotation |

Determine the stability of the wall : Determine the stability of the wall before and after the rainfall. Neglect seepage effects and which of the two walls in Figure gives the large horizontal force |

Compute torque about the origin acts on the particle : A 3.0 kg particle with velocity v = (5.0 m/s) i - (6.0 m/s)j is at x = 3.0 m, y = 8.0 m. It is pulled by a 7.0 N force in the negative x direction. What torque about the origin acts on the particle |

Sketch the distribution of lateral earth pressures : Sketch the distribution of lateral earth pressures - the weight of the wall |

Compute how fast must the particle be traveling : A particle of mass m0 is given a kinetic energy equal to one-third its rest-mass energy. How fast must the particle be traveling |

How many revolutions does it make in this time : A record turntable rotating at 33(1/3)rev/min slows down and stops in 21 s after the motor is turned off. How many revolutions does it make in this time |

## Find elastic modulus of material used to construct the wireGiven a type of material used in a wire with diameter (d = 0.25 in) that stretches 2.3 inches while 80 feet of length is under tensile load of 1800 pounds. Find the elastic modulus of the material used to construct the wire. |

## What is the maximum acceleration from restThe base engine develops 200 ft-lb of torque, and a modified version of the engine develops 240 ft-lb of torque. If the overall gear reduction ratio is 8 to 1, what is the maximum acceleration from rest (in ft/sec^2) for. |

## How much can the company afford to spend per monthWheeling-Pittsburgh Steel is investigating whether it should it should replace some of the basic oxygen furnace equipment now or wait to do it later. The cost later (i.e. 3 years from now) is estimated to be $1,700,000. |

## Describe the ductility of a reinforced concrete beamWhat does under-reinforced mean Which is desirable and why How would your Moment-Curvature plot be affected if the amount of tension steel was doubled How would your Moment-Curvature plot from part a be affected if compression steel was added to the.. |

## Determine the vertical distance climbedNeglecting the effect of altitude of local gravitional acceleration, determine the vertical distance climbed. Assume an average air density of 1.18 kg/m^3. |

## Calculate the plume centerline temperature at 6 m heightA pump in a large industrial hall containing 30 liters gasoline breaks down, causing the gasoline to spill into a 3 m2 sump surrounding the pump. The liquid pool is ignited by sparks. Assume the combustion to be 70% effective and the heat loss due.. |

## What is the maximum value of fz possible with no increaseThe flowrate in a rectangular channel is 20 m3/s. The width of the channel is 4 m and the depth of flow is 5 m. If there is an increase in the channel bottom elevation with NO energy loss, |

## How many inches should the channel drop in 350feet of lengthdesign a concrete (n = 0.013) channel that will convey 50,000 GPM. It is to be a trapezoidal in cross section with a bottom width of 7.5 feet. The side slopes are to be 1.33:1 (H:V) and it is desired to have the depth of flow constant at 2.0 feet. |

## Determine what is the average power output of the cyclistThe force from road drag is 2.5 N and the aerodynamic drag (in Newtons) is equal to 0.2v2 N where the units on 0.2 are N s2/m2 and where v is in m/s. Neglecting drive train losses what is the average power output of the cyclist |

## Determine the required value for mA 1 meter diameter cylindrical mass, M, is connected to a 2 meter wide rectangular gate. The gate is to open when the water level, h, drops below 2.5 meters. Determine the required value for M. Neglect friction at the gate hinge and pulley. |

## Problem 1 solve the following three questions of the beamproblem 1. solve the following three questions of the beam abc. note that a is a roller support b is a pin connection |

## Calculate annual costs of meeting proposed effluent(a) Calculate the annual costs ($/yr) of meeting the proposed effluent requirement of 0.1 mg P/L using alum to precipitate AlPO4(s). Assume the chemical formula for alum is Al2(SO4)3·18H2O (MW = 666). |

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