A trapezoidal channel of bottom width 25ft and side slope 1:2.5 carries a discharge of 450cfs with a normal depth of 3.5 ft. The elevations at the beginning and end of the channel are 685 and 650 ft, respectively. Determine the length of the channel if n=0.02.

Determine how many combinations of 2 books can be selected : A customer randomly select 2 of 10 books to purchase. How many combinations of 2 books can be selected |

How to calculate the value of w work for the system : Automobile airbags contain solid sodium azide, NaN3, that reacts to produce nitrogen gas when heated, thus inflating the bag. 2NaN3(s) ------> 2Na(s) + 3N2(g) Calculate the value of w (work) for the following system if 14.7 g of NaN3 reacts comple.. |

What is the finished grade elevation on the curve at station : A sag vertical curve along an existing vertical alignment begins at station 23+45 and ends at station 30+25. The initial grade coming into the curve is -2% and the grade out is +5%. What is the finished grade elevation on the curve at station |

Compute the dealer expected carry income : The dealer can currently borrow $ 2,000 million through one- week repurchase agreements at an interest rate of 1.20 percent. Compute the dealer's expected carry income in each of the following scenarios. ( Hint: A spreadsheet can be most useful he.. |

Determine the length of the channel for the n : A trapezoidal channel of bottom width 25ft and side slope 1:2.5 carries a discharge of 450cfs with a normal depth of 3.5 ft. The elevations at the beginning and end of the channel are 685 and 650 ft, respectively. |

Explain a buffer is prepared by adding sodium acetate : A buffer is prepared by adding 21.0g of sodium acetate ({\rm CH_3 COONa}) to 520mL of a 0.140M acetic acid ({\rm CH_3 COOH}) solution. |

Find the magnetic field strength in the center of the tank : In one such test, 150 turns of wire were wrapped around a 7.0-m-diameter cylindrical shark tank. find the magnetic field strength in the center of the tank |

Formulate a linear programming model : Formulate a linear programming model that can be used to determine the percentage that should be allocated to each of the possible investment alternatives. |

Determine the specifc energy of water in the channel : A rectangular channel is 25ft wide and has a flow of 500 cfs at a velocity of 5ft/s. (a) Determine the specifc energy of water in the channel. (b) What is the criticl depth of water in the channel (c) What is the critical velocity |

## Compounds empirical and molecular formulaA Silane contains 90.31 % silicon and 9.69 % hydrogen by mass. The compound has a molar mass of 62 g/mol. Determine the compound's empirical and molecular formula. |

## Calculate percipitable water in standard atmoshperic columnCalculate the percipitable water (mm) in a 10-km high standard atmoshperic column if the surface conditions are temperature=20 degrees C, pressure=101.3 kPa and the laspe rate is 6.5 degrees C/km. |

## What is elastic wave tomographywhat is elastic wave tomography , flat jack, push shear test in masonary? |

## Component of the force fac along the axis of strutDetermine the projected component of the force fac along the axis of strut ao. Express the result as a cartesian vector. |

## What should actually the separation distanceAt what speed the rule of 25 feet separation between two cars is safe? |

## Find the flow rate per unit thickness for a section midwayTwo piezometers are located 1000 ft apart with the bottom located at depths of 50 ft and 350 ft, respectively, in a 400-ft-thick unconfined aquifer. The depth to the water table is 50 ft in the deeper piezometer and 40 ft in the shallow one. |

## Define the front of our library has six double doorsthe front of our library has six double doors and the doors rotate open in the middle making less clerance room how can i get started |

## Determine the required value of the massa 1 meter diameter cylindrical mass is connected to a 2 meter wide rectangular gate. the gate is to open when the water level drops below 2.5 meters. Determine the required value of the mass of the cylinder in kgs. |

## Cantilever mass-less beamConsider a cantilever mass-less beam subjected to a concentrated mass at the tip of the beam. Assume, length L, flexural stiffness EI, and mass m. |

## Transportation and managementIn the construction management, there is a lot of procurement route that are necessary and suitable for the construction industry. |

## Calculate the maximum tensile load in nConsider a cold worked C11000 copper alloy rod 21 mm in diameter and 250 mm in length. Calculate (a) the maximum tensile load, in N, and (b) the maximum length, in mm, to which the rod may be stretched without plastic deformation. |

## Determine the maximum acceleration of the cameraThe vertical velocity of the box at the time that it hits the surface is v= 5m/s. After impact the camera experiences an acceleration of a = -kx, where k is a constant and x is the compression of the packing material. |

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