A circular sewer is laid on a slope of 0.5%. What diameter is required if the concrete is to carry 25 cfs. If the desired design mean section velocity is between 3 and 7 feet per second, is the design acceptable?

Determine the peak voltage across the capacitor : An AC generator supplies an rms voltage of 230 V at 50.0 Hz. It is connected in series with a 0.650 H inductor, a 6.00 ?F capacitor, What is the peak voltage across the capacitor |

How to calculate the lattice energy of potassium chloride : Given that the ionization energy of gaseous potassium is 419 kJ mol -1, calculate the lattice energy of potassium chloride. |

Determine economical number of trucks and direct cost : A project involves transporting iron pipe to a jobsite that is 43 miles from the supplier. The pipe will be hauled in trucks that can carry 16 pipes per load. Each pipe is 20 ft in length. The average haul speed of a truck will be 50 mi./hr and re.. |

Explain the enthalpy change in kj/g of koh dissolved : When 10.0 g KOH is dissolved in 100.0 g of water in a coffee-cup calorimeter, the temperature rises from 25.18°C to 47.53°C. What is the enthalpy change, in kJ/g of KOH dissolved in the water? Assume that the solution has a specific heat capacity .. |

What diameter is required if the concrete is to carry 25 cfs : A circular sewer is laid on a slope of 0.5%. What diameter is required if the concrete is to carry 25 cfs. If the desired design mean section velocity is between 3 and 7 feet per second, is the design acceptable |

Calculate fraction of total atrazine that will be adsorbed : Calculate the fraction of total atrazine that will be adsorbed to the soil given that the soil has an organic carbon content of 2.5%. The bulk density of the soil is 1.25 g/cm3; this means that each cubic centimeter of soil (soil plus water) conta.. |

Explain which of the two ionic compounds nacl or cacl2 : Which of the two ionic compounds, NaCl or CaCl2 has the larger lattice energy. Why |

Find length and width of square basin for virus disinfection : Find the length and width of a square basin for virus disinfection of a flow of 6 MGD. You may assume a depth of 5 ft, a C•t product of 10 (mg/L) •min for 1.5-log removal, and a target free chlorine residual of 0.6 mg/L. |

The molecular fluorine to form fluoropropane in the presence : Propane reacts with molecular fluorine to form fluoropropane in the presence of light energy. Using curvy arrows to show the movement of electrons, present a reasonable mechanism for this reaction. Label each step in the process. |

## What is the equivalent pressure drop in standard atmospheresA HEPA (high efficiency particulate air) filter is monitored periodically for replacement. Specifications state that if the pressure drop across the filter exceeds 1 inch of water, the filter should be replaced. |

## Alternative water resource projectsConsider two alternative water resource projects, A and B. Project A will cost $2,533,000 and will return $1,000,000 at the end of 5 years and $4,000,000 at the end of 10 years. |

## Elastic modulus of steelGiven: elastic modulus of steel is 200 GPa, yield and ultimate tensile strength of steel are 600 and 750 MPa, respectively. |

## Determine the change in length of the steel barA steel bar of length 30 inches and circular cross section whose diameter varies linearly from 0.50 inches at one end to 0.75 inches at the other is subjected to an axial tensile force of 4.5 kip. Find the change in length of the bar. |

## 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. |

## What types of quality management toolsWhat are two or three quality management tools used in data collection? What types of quality management tools do you utilize to make personal or business decisions? How do you use these tools in the decision-making process? |

## 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. |

## Draw a plan of a typical strip mineDraw a plan of a typical strip mine showing all operational features and equipment and why is the working slope of an open pit usually much flatter than the final slope? |

## What is the probability that the second explosionCities cover approximately 0.5% of the Earth's land area, which itself constitutes 29% of the total surface of the planet. What is the probability that the second explosion in part (b) occurs over a city? Assume an equally likely probability of im.. |

## Determine the total crop water requirementDetermine the total crop water requirement including the leaching ratio of a corn crop with a ECt of 1.7mmhos cm-1 if the ECiw of the irrigation water and precipitation is 5 and 0 mmhos cm-1 respectively |

## Determine the mass flow raw through the nozzleAir enters an adiabatic nozzle steadily at 300 kPa, 200?C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm2. Determine (a) the mass flow raw through the nozzle, (b) the exit temperature of the air, and (c) the e.. |

## Calculate the ratio of area to volume for unit cubecalculate the ratio of area to volume for unit cube a unit sphere in inscribed inside the cube, and as write cylinder inscribed inside the cube. |

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