A piston, 9 cm in diameter, is used to increase the internal pressure in a cylinder from 0 to 50 MPa. The cylinder, which is made of peak-aged aluminum alloy (yield strength = 500 MPa, Kic = 35 MPaVm), has the following dimensions: length = 20 cm, inner diameter = 9 cm and outer diameter =1 1 cm. The piston-cylinder arrangement suffered a malfunction which caused the cylinder to burst. Post-failure analyses showed the presence of a defect in the form of an elliptical flaw 4.4 mm long at the inner wall, 1.5 mm deep and oriented normal to the hoop stress in the cylinder. Compute the magnitude of the pressure at which the cylinder burst.

What are the main advantages of the latter over the former : State alternative electro-mechanical and power electronics starters (at least one configuration for each) which can be used for the same purpose. What are the main advantages of the latter over the former? |

Standard deviation of the sample proportion of heads : If we toss a fair coin 200 times, the number of heads is a random variable that is binomial. Find the mean and the standard deviation of the sample proportion of heads. |

Result the probability of a head : A coin is slightly bent, and as a result the probability of a head is 0.54. Suppose that you toss the coin four times. |

Favorableness factors of the contingency leadership model : Do the three situational favorableness factors of the contingency leadership model (see Exhibit 5.3 on page 157) fit in only one of the three variables (follower, leader, situation) of all contingency leadership variables (see Exhibit 5.1 on page.. |

Compute the magnitude of the pressure : Compute the magnitude of the pressure at which the cylinder burst. |

What are equilibrium wage rate and number of hours worked : What are the equilibrium wage rate and number of hours worked? What is the quantity of unemployment at the equilibrium wage? How many hours do teenagers work and how many hours are unemployed? |

Evaluate environment of small and medium sized enterprises : Demonstrate understanding of the psychology and philosophy of entrepreneurs and small medium business operators and critically evaluate the environment of Small and Medium sized enterprises |

Climbing the corporate ladder to ceo of pepsico : PepsiCo was ranked 63rd in the 2007 Fortune 500 list of the largest companies (ranked by revenues) and is number 1 in the Food and Consumer Products category (ahead of Kraft Foods, Sara Lee, Conagra Foods, and General Mills). |

Destroying a large steel plate used in valuable engineering : The bystander, who notified the foreman, reported to the police, by phone, that, in his judgement, the crack in the plate was propagating at a velocity proportional to the crack tip opening displacement corresponding to the peak load of each cycle.. |

## What must be the pressure in pipe a to provide a flowThe steel pipe shown carries water from the main pipe A to the reservoir and is 2 in. in diameter and 240 ft long. What must be the pressure in pipe A to provide a flow of 50 gpm? PLEASE include momentum and force diagrams. |

## Why the highest head of the water in the excavationwhy the highest head of the water in the excavation is mathematically guaranteed to occur on the edge of the excavation. explain in mathematical and/or physical. |

## Traverse survey of the points indicatedUsing a total station, carry out a traverse survey of the points indicated, apply corrections and compute co-ordinates of the stations. Describe the steps undertaken to complete. |

## How to design the slab for minimum overall thicknessA one-way solid concrete slab is to be used for a simple span of 16 ft. In addition to its own weight, the slab carries a superimposed dead load of 50 psf and a live load of 75 psf. |

## Simplify the shape of the base and the 4 legs and estimateThe Statfjord B drilling platform, was built in Norway and towed 370km in 5 days to its present site in the North Sea in August 1981. It is the heaviest object ever moved by man |

## Estimate the amount of carbofuran remaining at the start ofnbspcarbofuran is applied to a corn field at planting time in order to control corn rootworm. the application rate is |

## Write an essay on air water and soil-based heat pumpsidentify the conditions under which that system is preferable over the other two. In what situations would you not recommend a heat pump heating system? |

## What is the estimated collection efficiency at 250degree fOur ESP is collecting 95% of the particles in our exhaust stream. We are under pressure to improve its performance. It has been suggested that if we were to cool the inlet gas from the present 600°F to 250°F |

## Determine the storage content at the endDuring a particular 30-day period, the streamflow flowing into a reservoir averaged 5.0 m3/s. Water supply withdrawals from the reservoir averaged 136 mgd. The only other outflow from the reservoir was 9.4 cm of evaporation from the water surface. |

## Does this procedure result in a binomial distributionContamination is a problem in the manufacture of optical storage disks. The number of particles of contamination that occur on an optical disk has a Poisson distribution and the average number of particles per centimeter squared of media surface i.. |

## Comment on the water discharge rate for maximum powerDuring the recent camping trip, a curious junior engineering student (like yourself) noticed that water is being discharged from a high reservoir to a stream in the valley through a 0.3 m diameter plastic pipe. The difference in elevation between the.. |

## What is the magnitude and direction of specific dischargeGroundwater moves through a sandstone porous media and is driven by a gradient of -0.05 directed at an angle of 60 degree counterclockwise from the x-axis. |

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