A closed piston-cylinder with air expands and does 2000 ft-lbs of work. Heat is added in the amount of 4 btu. What is the change in internal Energy.

## Calculate the number of vacancies per cubic meterCalculate 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. |

## Air enters the compressor at 98 kpa and 295 k at a rate ofan adiabatic air compressor is to be powered by an adiabatic steam turbine. steam enters the turbine at 12.5 mpa and |

## What the fe is in the scond sentenceNow our robotics team is trying to tighten one of the ¼" - 20 UNC bolts to hold on the wheels. They are using a wrench that is 6" long. They exert 10 lbs to pull the wheel toward its axle with 110 lbs of force. Fill in the values for this s.. |

## Find compare the torsional strength and stiffness of thisgiven a thin-walled square tube with median edge dimensions a x a wall thickness t and a longitudinal slot of |

## Consider x norm57 y norm57 and z norm19 and assume xyconsider x norm57 y norm57 and z norm19 and assume xy and z are independent.1 find and sketch the probability |

## Does the atmospheric pressure inside of a tube aproximatelydoes the atmospheric pressure inside of a tube aproximately a half an inch in diameter cause resistance against an end |

## What would the pressure rise toEstimate the mass of the gas in the tank in kg assuming the gas behaves as an ideal gas. If the gas warms up to 35 deg C as it sits in the sun all day, what would the pressure rise to? |

## Ammonia vapor flows through a valve it enters the valve atammonia vapor flows through a valve. it enters the valve at a pressure of 8 bar and a temperature of 120c and after |

## Determine distribution of shear force and bending momentDetermine distribution of shear force and bending moment |

## Obtain a relation for the variation of pressure in thetemperature varies with altitude. the variation in the temperature can be approximated by tt0 -beta z where t0 is the |

## A projectile is fired at an angle of 62deg from thea projectile is fired at an angle of 62deg from the horizontal with a velocity of 704 ftsec. if it lands 4.75 seconds |

## How do you solve for the stresses acting on a perimeterhow do you solve for the stresses acting on a perimeter point centered on the y axis the force is applied parallel to |

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