Rooms with floor areas of up to 15-m2 are cooled adequately by window air conditioners whose cooling capacity is 5000 Btu/h. Assuming the COP of the air conditioner to be 3.5, determine the rate of heat gain of the room, in Btu/h, when the air conditioner is running continuously to maintain a constant room temperature.

## Total expansion and total bleeding in term of percentageTo avoid shrinkage cracks in the grout, what should be the total expansion and total bleeding in term of percentage for the grout? |

## Determine how long will generator run on a tankful of fuelA Bonda portable generator is powering a small travelling fridge (120V) in your RV and consumes 125 watts. The efficiency of the generator's gas motor is 23% and the electrical portion (power head) is more efficient at 91%. |

## Determine the shear stress in the waterWould it be more efficient to use the method of section on the diagonal cross member part of the truss or do you have to use the method of joints to determine other forces first? |

## Determine magnitude and direction of objects acceleration8 Forces of 10.0 N north, 20.0 N east, and 15.0 N south are simultaneously applied to a 4.00 kg mass as it rests on an air table. Determine the magnitude and direction of the object's acceleration. |

## Determine the volume of sludge after filtrationAssume that the sludge does not change density during filtration and that liquid removed from the sludge contains no sludge. Using mass-balance method. determine the volume of sludge after filtration. |

## Problem analyze the stability of the dam shown in theproblem analyze the stability of the dam shown in the figure if the friction coefficient between concrete and |

## What will be allowable compressive stress in extreme fibersA) Compute the maximum fiber stress. B) If the compression flange of the beam is supported laterally only at the ends of the span, what will be the allowable compressive stress in the extreme fibers |

## Imaging you have to shoot a basketball ballPart B (Assignment): by trial and error, find the angle that will give the minimum force F to make a basket (hint: try 52 degrees)The trajectory of the ball will make a basket when x = L and y = Hb |

## What will it be at denver of the us standard atmosphereIf the takeoff speed of an airplane is 120 mph at sea level, what will it be at Denver (elevation =5000 ft) Use properties of the US Standard Atmosphere |

## 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. |

## Determine the amount of natural alkalinity consumedjar tests were perfomed on untreated river water. an optimum dose of 12.5 mg/L of alum was determined. determine the amount of natural alkalinity (mg/L as CaCO3) consumed. |

## Determine the velocity of the contact point in contactPinion gear A rolls on the fixed gear rack B with an angular velocity = 8 rad/s. Determine the velocity of the gear rack c . Assume the direction to the right as positive. |

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