A rigid tank contains 40 lbm of air in 20 psia and 70 degrees F. More air is added to the tank untill the pressure and temperature rise to 35 psia and 90 degrees F, respectively. Determine the amount of air added to the tank in lbm.

What is the maximum shear stress in the liquid : If the viscosity of the liquid is 10–3 N-s/m2, what is the maximum shear stress in the liquid? |

Determine graphically the magnitude and direction : The cable stays AB and AD help support pole AC. Knowing that the tension is 120 lb in AB and 40 lb in AD, determine graphically the magnitude and direction of the resultant of the forces exerted by the stays at A using (a) the parallelogram law, (b) .. |

Calculate what is the frisbees rotational inertia : A 106g Frisbee is 18cm in diameter and has half its mass spread uniformly n the disk and the other half concentrated in the rim. What is the Frisbee's rotational inertia |

Determine the maximum tension t that can be exerted : If a hook can sustain a maximum withdrawal force of 250 N inthe vertical direction, determine the maximum tension, T, that can be exerted. |

Determine the amount of air added to the tank in lbm : A rigid tank contains 40 lbm of air in 20 psia and 70 degrees F. More air is added to the tank untill the pressure and temperature rise to 35 psia and 90 degrees F, respectively. |

Find how far from the shoulders is mans center of gravity : A man doing a slow push-up is approximately in static equilibrium. His body is horizontal, with his weight of 757 N supported by his hands and feet, how far from the shoulders is the man's center of gravity |

Describe and implement virtual local area networks : Describe and implement Virtual Local Area Networks on a computing network and compare and contrast dynamic routing, distance vector routing, and link-state routing protocols. |

Find how much work is done by the gravitational force : A 5.0-kg object is pulled along a horizontal surface at by a 15 N force acting 20? above the horizontal. How much work is done by the gravitational force |

What is the rectified average current : A sinusoidal current i= Icoswt has an rms value of I rms = 2.20 A. What is the current amplitude, What is the rectified average current |

## Determine the actual detention time observed in the fieldDetermine the actual detention time observed in the field of two circular settling tanks with depth 3.5 m that was designed to have an overflow rate not exceeding 60 m3/m2-day and a detention time of at least 2 hour. |

## How to estimate the pesticide concetration in the lakethe flow into the lake is from is from a stream is 300 m3/d andthe flow into the lake from runoff averages 20 m3/d. The lake is used for fishing by the local residents but the pesticides from local farms may damage the fish population. |

## How to determine the friction force on the floorThe crate has a wieght of W = 350lb., and the coefficients of static and kinetic friction are us = 0.3 and uk = 0, respectively. Determine the friction force on the floor. Theta = 45 degrees and P = 100lb. |

## Determine the required mass of c and the length of the cableif D has a mass of 600 kg, determine the required mass of C, the maximum sag h of the cable, and the length of the cable between the pulleys A and B. The Beam has a mass per unit length of 50 kg/m. |

## How to design a pump system with certain requirmentsThe pump graphs are given to us, and I'm asked to determine possible lengths and diameters of the pipe to meet two requirments. The system can have multiple outputs in order to satisfy the needs, but they must be occuring at the same time. |

## Calculate the difference in elevation from a to bIn trigonometric leveling from point A to point B, the slope distance and the zenith angle measured in A were 2504.897 m and 85o08'54". At B, these measurements were 2504.891 m and 94o52'10" respectively. |

## Determine velocity of contact point in contact with alleyA bowling ball is cast on the "alley" with a backspin of = 12 while its center has a forward velocity of = 7 Radius= 120 mm Determine the velocity of the contact point in contact with the alley. |

## Compute the point and fresh water pressure headThe fluid pressure in the screen of a piezometer in a saline aquifer is 7.688 x 10^5 N/m^2. The fluid density is 1055 kg/m^3 and the temperature is 14 degrees C. The elevation of the piezometer screen is 45.9 m above sea level. |

## Compute the wavelength corresponding to the frequenciesProvided that the amplitude is sufficiently great, the human ear can respond to longitudinal waves over a range of frequencies from about 20 Hz to about 20000Hz. Compute the wavelength corresponding to these frequencies |

## Determine the forces in members de and ea of the trussDetermine the forces in members DC,CB and BA of the truss. State whether the members are in tension or compression. set P=7 kN. Determine the forces in members DE and EA of the truss. |

## Determine the magnitude of the cars accelerationIf the car passes point A with a speed of 20m/s and begins to increase its speed at a constant rate of At=0.5m/s^2, determine the magnitude of the car's acceleration when s=100m and x=0. |

## Identify the risk factorsTacoma Narrows Bridge. Conduct either a qualitive and quantitive risk assessment on this project. Identify the risk factors that you consider most important for the suspension bridge construction. How would you assess the riskiness of this project.. |

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