refrigerant -134a at 800kPa and 25 C is throttled to a temperature of -20C. determine the pressure and the internal energy of the refrigerant at the final state.

Determine the actual and minimum theoretical operating : determine the actual and minimum theoretical operating costs, each in $/day. |

What force must be applied to the plunger : the pressure in the vein is known as 1850 Pa. what force must be applied to the plunger, so that 1.5 x 10^-6 m^3 of solution can be injected in 5.0 s? |

Determine the velocity va : The catapult is used to launch a ball such that it strikes the wall of the building at the maximum height of its trajectory. If it takes 1.5 s to travel from A to B, determine the velocity vA at which it was launched, the angle of release q, and t.. |

How many labor teams are required to produce 360 widgets : the production function: Q=5KL the assembly machines, K, costs $10,000 a week, while labor teams, L, cost $5000 per week. your plant has 4 assembly machines In the short run, ____ labor teams are required to produce 360 widgets. |

Determine the pressure and the internal energy : refrigerant -134a at 800kPa and 25 C is throttled to a temperature of -20C. determine the pressure and the internal energy of the refrigerant at the final state. |

Calculate the number of vacancies per cubic meter : Calculate the number of vacancies per cubic meter in gold at 900°C. The energy for vacancy formation is 0.98 eV/atom. Furthermore, the density and atomic weight for Au are 18.63 g/cm3 (at 900°C) and 196.9 g/mol, respectively. |

Determine the magnitude and direction fo the force p : A 200 kg crate is to be supported by the rope and pulley arrangement shown. Determine the magnitude and direction fo the force P that must be exerted on the freee end of the rope to maintain equillibrium. |

Determine diameter of a circular rod of ductile material : determine diameter of a circular rod of ductile material with a fatigue strength ,e=280 Mpa. Add a tensile yield strength of 350 Mpa. The member is subjected to a varying axial load from 700 kN to -300kN. Assume Kt=1.8 and factor of safety=2. |

Calculate the net cash flow for the year 2015 : You went on a trip to Tombstone, Arizona and stopped into a gift shop, where you began talking with the owner. You find out that she needs to apply for a small business loan and needs to calculate the net cash flow for the year 2015. |

## What is the airspeed of the planeThe airspeed of an aeroplane is measured with a Pitot tube. The plane is flying at an altitude of 10000m, and the Pitot tube measures a gauge pressure of p = 10kPa. What is the airspeed of the plane? |

## Compare the pressure force exerted on the face of two damsFluid/Dam Pressure, Compare the pressure force exerted on the face of two dams that hold a fresh water of 1000 Kg/m^3 density and a salty water of 1030 Kg/m^3 |

## Mechanical engineering questionsDefine dynamic viscosity, Determine the centroid, Pressure due to the height of liquid, Advantage of changing the liquid, Calculate the total moment about the hinge of the seal gate. |

## Find the air exit temperature from the compressorAir exits from the nozzle at 800m/s. find the air exit temperature from the compressor. |

## Determine the failure envelope and the non-failure regionDetermine the failure envelope and the non-failure region in the sigma_y - tau_xy plane using Tsai-Hill theory for the following cases |

## Define the final state inside the tankFind the final state inside the tank, A tank contains 2kg of nitrogen at 10K with a quality of 50%.Through a volume flow meter and valve, 0.5kg is now removed while the temperature remains constant. |

## Explain beam deflection at corner through centroidBeam deflection at corner through centroid, Sometimes the term centroid throws me for a loop. So, how would I set this problem up? |

## Watts that is suitable to satisfy certain specific needsDetermine Compressor Size in Watts that is suitable to satisfy certain specific needs, The drinking water needs in a production facility with 20 employees is to be met by a water bubbler type water fountain. |

## Determine the crack growth for cycleDetermine the crack growth for cycle #3 using Wheeler's retardation model (m=2)-finite width correction factor for SIF |

## Explain vector integral - stokes theromVector integral - stokes therom, Evaluate the line integral by stokes theorem (clock wise as seen by a person standing at the origin). |

## What of diameter of steel rod is required to support tensionWhat of diameter of steel rod is required to support a tension load of 44.5kn?assume that the allowable stress for the steel is F=165n/mm. |

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