1.A water tank is completely filled with liquid water at 20 degree Celcius. The tank material is such that it can withsatand tension caused by a volume expansion of 2%. Determine the max temperature rise in Celcius degress allowed without jeopardizing safety. Neglet the effect of pressure change.

2.Determine the resultant pf the following coplanar system of forces:261lbs.,10 degrees ''39lbs.114 degrees;63lbs.,183 degrees;57lbs.,261 degrees.

3.A tow truck is using a cable to pull a car up a 15 degree hill. If the car weighs 4000 lbs and the cable has a diameter of .75 inches, find the stress in the cable when the truck comes to a stop while on the hill. Ignore friction between the car and the pavement.

## Determine the coliform concentration at pacific ocean beachAn ocean outfall diffuser that discharges treated wastewater into the Pacific Ocean is 500m from a public beach. The wastewater contains 105 coliform bacteria per milliliter. The wastewater discharge flow rate is 0.3 m3/s. |

## Sample of natural glacial-groundwater tableA sample of natural glacial till was taken from below the groundwater table. The water content was found to be 52%. Estimate the wet density, dry density, buoyant density, porosity and void ratio. Clearly state any necessary assumptions. |

## Why is granular activated carbon used to treat wastewaterWhy is granular activated carbon(GAC) used to treat the industrial wastewater stream but not the domestic wastewater stream |

## Sulphate ions in natural and industrial environmentsList some of the common sources of sulphate ions in natural and industrial environments. For a given sulfate concentration, explain which of the following solutions would be the most deleterious and which would be the least deleterious to a permea.. |

## Determine selling price that yields effective annual returnFive $1,000 bonds having a bond rate of 8% per year payable quarterly are pur chased for $4,940 and kept for 6 years, at which time they are sold. Determine the selling price that yields a 6% effective annual return on the investment. |

## Determine entropy change of air during compression processAir is compressed from an initial state of 100 kpa and 170 *C to a final state of 600 kpa and 57 *c. Determine the entropy change of air during the compression process by using a) property values from the air table and b) average specific heats |

## Using only the category of property damage what would the1.what would the bc ratio be if the light poles were twice as far apart as assumed above?2. what is the ratio of night |

## Calculate the angles made by f with the positive x and yA force is specified by the vector F = [(10)i + (150)j + (-50)k] N. Calculate the angles made by F with the positive x-, y-, and z-axes |

## Determine the change instorage in the watershed over oneDetermine the change instorage in the watershed over one year. The ratio of runoff toprecipitation (both in cm) is termed the runoff coefficient.Compute the runoff coefficient for this watershed. |

## Find the total massA container of volume 0.04 m3 contains a mixture of saturated water and saturated steam at a temperature of 250oC. The mass of the liquid present is 9 kg. Find the total mass, quality of steam, specific volume, specific enthalpy, and specific inte.. |

## What is annual inflation rate and is it compounded annuallyA newspaper reports that in the last 5 years, prices have increased a total of 50%. this is equivalent to what annual inflation rate, and is it compounded annually |

## A company that manufactures regenerative thermal oxidizersa company that manufactures regenerative thermal oxidizers made an investment 10nbspyears ago that is now worth |

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