a copper alloy is found to have a yield strength of 240 MPa , a tensile strength of 310 MPa and an elastic modulus of 110 GPa. A cylindrical specimen of this alloy 18 mm in diameter and 400 mm long is stressed in compression and found to shorten by 3.0 mm a) calculate the operational compressive strain this copper specimen is subjected to. b) calculate the maximum strain this copper alloy can sustain without becoming plastically deformed.

Determine the entropy change of the hot reservoir : Using the definition of entropy change, dQ = T dS, what is the entropy change of the hot reservoir |

Perception help us become more effective communicators? : How can our understanding of perception help us become more effective communicators? |

How much would it cost her to buy such an annuity today : The going rate on such annuities is 7.25%. How much would it cost her to buy such an annuity today? |

Determine the frequency of the moving sound source : A narrow glass tube, open at one end, closed at the other, is 40cm long. Determine the frequency of the moving sound source |

Calculate the maximum strain the copper alloy can sustain : a) calculate the operational compressive strain this copper specimen is subjected to. b) calculate the maximum strain this copper alloy can sustain without becoming plastically deformed. |

What rate of return is built into the annuity : Suppose you just won the lottery, and you have the choice between receiving $2550000 today or a 20-year annuity of $250000, with the first payment coming a year from today. What rate of return is built into the annuity? Disregard taxes. |

A judgment against the hospital or fpmg why : She is also suing Community Hospital because the office staff members are hospital employees. In the lawsuit, is there likely to be a judgment against the hospital? Or FPMG? Why? |

Obtain the electric field vector : Given the electrostatic potential field as a function of position V(x,y,z) = 5x^3 y + 5yz +z^2 , determine the electric field vector E |

Determine horizontal component of reaction that pin exert : Determine the horizontal component of reaction that the pin A exerts on the two-member frame. Set F = 500 (Find Ax) Determine the vertical component of reaction that the pin A exerts on the two-member frame. |

## Sketch process on p-v diagram clearly labeling final states5 Kg of water at 1.2 MPa, 120oC is contained in a frictionless piston-cylinder device. The water is heated until its temperature reaches 250oC. a) a)Determine the work performed in kJ |

## How to plot the shear and moment across the beamWrite the equations required to express the shear and moment along the entire length of beam. Use an origin at point A, and then repeat computations using an origin at point D. Plot the shear and moment across the beam. |

## Calculate the angles made by f with the postive xa force is specified by the vector F=160i+80j-120k N.calculate the angles made by F with the postive x y and z axes. |

## Dimensions of symmetrical trapezoid plateThe plate is submerged in a liquid is a vertical position with the parallel sides horizontal and the shorter parallel side at the top and exactly in the surface of the liquid. |

## Estimate how far the contaminant would travel in 5 yearsA contaminant in water is traveling through a saturated clay layer under a hydraulic gradient of 0.15. The clay has a hydraulic conductivity of 2 x 10^(-7) cm/s, a moisture content of 19%, and a Gs of 2.65. |

## Shafts in a speed-reducer unitThe two shafts in a speed-reducer unit are subjected to couples of magnitude M1 = 18 N · m and M2 = 7.5 N · m, respectively. |

## Design condition inflow and pumping ratesDerive an equation that allows you to compute the diameter of the drain hole for a desired steady water height in the tank for the design condition inflow and pumping rates. |

## Determine the factors of safety against slidingassume hydrostatic uplift varies uniformly from full hydrostatic head at the heel of the dam to zero at the toe. consider 1m length of dam. |

## What is the average annual inflation rate for the machineYou purchased a machine 5 years ago for $100,000 and now the machine costs $135,000. What is the average annual inflation rate for this machine |

## Estimate the change in pressure over 100 m of pipelineWater at 20 degrees flows at a velocity of (V =) 2 m/s in a (D =) 250-mm diameter horizontal ductile iron pipe. Estimate the friction factor f in the pipe, and state whether the pipe is hydraulically smooth or rough. |

## Should aerotron electronics buy the water filtration systema. What is this investment's external rate of return b. What is the decision rule for judging the attractiveness of investments based on external rate of return c. Should Aerotron Electronics buy the water filtration system |

## Compute the factor of safety by using an effective stressA 2:1 natural slope is underlain by a 3-m thick (measured vertically) soil cover over bedrock. Compute the factor of safety by using an effective stress infinite slope analysis with c'=0 and o' (theres a line between that)= 35 degrees for the soil.. |

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