1.According to the National Design Specification for Wood Construction (NDS), the tension PARALLEL to the grain, Ft, is less than the compression PARALLEL to the grain, Fc, why?

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2.Write a brief description (1-3 paragraphs) of the Saint Venant equations (words only, no equations) comparing them to the Navier-Stokes equations, emphasizing the ASSUMPTIONS on which they are based.

Power is required of force motor exerts on cab via cable : A fully loaded, slow-moving freight elevator has a cab with a total mass of 1150 kg, which is required to travel upward 49 m in 3.1 min, starting and ending at rest. The elevator's counterweight has a mass of only 1025 kg, and so the elevator motor m.. |

Other forces also act on the particle : Force on a Particle A force F = (4.0 N)i + (c N)j acts on a particle as the particle goes through displacement d = (4.0 m)i - (2.0 m)j. (Other forces also act on the particle.) What is the value of c if the work done on the particle by force F is eac.. |

What is the tension in the string : You whirl a 0.50 kg rock on a string over your head. It takes 1.0 second for the rock to make a complete revolution. The string is 1.5 m long. What is the velocity of the rock, What is the centripetal acceleration of the rock, What is the tension in .. |

What work is done on the crate by the workers force : To pull a 30 kg crate across a horizontal frictionless floor, a worker applies a force of 190 N, directed 20° above the horizontal. The crate moves 3.0 m. (a) What work is done on the crate by the worker's force? (b) What work is done on the crate by.. |

Will promptly rate any acceptable response as a life saver : Write a brief description (1-3 paragraphs) of the Saint Venant equations (words only, no equations) comparing them to the Navier-Stokes equations, emphasizing the ASSUMPTIONS on which they are based. |

The description should include a brief history : Write a brief (No more than a few paragraphs plus the equations themselves on a) description of the three-dimensional unsteady Navier-Stokes equations as applied to water. The description should include a brief history |

Determine the dynamic viscosity of glycerin at 85 degrees : Two parallel plates, one moving at 4m/s and the other fixed, are seperated by a 5mm thick layer of oil of specific gravity 0.80 and kinematic viscocity 1.25 X 10^-4 m2/s. What is the average shear stress in the oil? |

Classify the soils using the given grain size distribution : Classify the following soils using the given grain size distribution (ASTM system) and Atterberg Limits data: |

Compute the circumferential stress to which the wall : The length of a reading room in a library is 10 m and its breadth is 8 m. Compute the distributed live load, assuming the basic value of the load to be 2873 N/m2. |

## What are the effects of degree of hydration on capillaryWhat are the effects of degree of hydration on capillary pore volume, capillary pore size, porosity, permeability, and compressive strength of hydrated cement (Degree of hydration: hydrated cement/total cement, increases with time and temperature) |

## Determine a dollar amount on december 31st-2011determine a dollar amount on December 31st , 2011 FOR $1000 equal payments made at the end of each of the previous 7 years including the current year. use an effective interest rate of 10% compounded annually. |

## What supported in the weak direction at the one-third pointsThe member is 24ft long with pinned end supports and is laterally supported in the weak direction at the one-third points of the total column length. Use 50 ksi steel. |

## Would the loss of life have been different and whyAs a civil engineer you look up in your strength of materials book and find out that the deflection, for a square beam of width, t, and length, L, when subjected to a tensile force, F, is given by: h=FL/(Et2), where E is Young's modulus. |

## Find probability that in 30years at least 1man will be aliveAn insurance sales representative sells policies to 5 men, all of identical age and in good health. According to the actuarial tables, the probability that a man of this particular age will be alive 30 years hence is 2/3. |

## Does steel have adequate charpy v notch fracture toughnessthe average values of the test results at four different test temperatires were found to be 10ft.lb -(-50 F) 15 ft.lb- 0F 40 ft.lb- 40F 60 ft.lb-100 F the bridge will be located ina region where specifications require minimum of 25 ft. |

## A rectangular clarifier with a lengthwidth ratio of 31a rectangular clarifier with a lengthwidth ratio of 31 receives a flow of 850m3day. the clarifiers depth is 4.0m and |

## What is the solids concentration of primary clarifier sludgea 20 mgd wastewater treatment plants primary clarifier influent has 800 mg/l solids. the clarifier removes 18 percent of the solids. the sludge flow rate is 0.070 MGD. (a) what is the solids concentration of primary clarifier sludge |

## Determine force exerted by the hydraulic cylinder on boomA hoist mechanism is attached to the back of a pickup truck. The crate being moved by the hoist shown below weighs 200 lbs. Note: Point A is directly above point B and the vertical distance between points A and B is 16 inches. |

## How many feet below railway should curve pvi be locatedAn existing high-way railway at-grade crossing is being redesigned as a grade seperated to improve traffic operations. the railway must remain at the same elevation. the highway is being reconstructed to travel under the railway. |

## Calculate what is drag coefficient with 16-in radius wheelsa 3000 lb car has a maximum speed of 140 mi/h with 16-in radius wheels, a gear reduction of 3.5 to 1, and a drivetrain efficiency of 92%. it is known that at the cars top speed the engine is producing 220 ft-lb of torque. |

## Compute the max acceptable tensile service load for angleThe service live load is three times the dead load. The 4-in leg contains a single line of 7/8 inch diameter bolts, and the 6 inch leg contains a double gage line of 7/8 inch diameter bolts. |

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