A transport plane has a mass of 45,000 kg, a wing area of 160 m2, and an aspect ratio of 7. Assume all lift and drag due to the wing alone, with CD infinity = 0.020 and CL,max = 1.5. If the aircraft flies at 9000 m standard altitude, make a plot of drag (in N) versus speed (from stall to 240 m/s) and determine the optimum emise velocity (minimum drag per unit speed).

Find the speed of the soccer ball : The momentum of a soccer player is 100kg-m/sec and he hits a soccer ball with a mass 0.1 kg, find the speed(velocity) of the soccer ball |

Calculate minimum-sized sand particle that would be removed : Calculate the minimum-sized sand particle that would be removed in the chamber. To be removed, the particles must settle the depth of 2 m during the period the wastewater spends in the chamber (dT=V/Q). |

What are some indications that investors are risk averse : What are some indications that investors are risk averse? How would you as a portfolio manager support these investors? What kind of recommendations would you make? What would you recommend as a portfolio manager to reduce the risk for a risk a.. |

How much energy is liberated : Consider the nuclear reaction: (2/1)H + (9/4)Be --> (7/3)Li + (4/2) He. How much energy is liberated |

Determine the optimum emise velocity per unit speed : If the aircraft flies at 9000 m standard altitude, make a plot of drag (in N) versus speed (from stall to 240 m/s) and determine the optimum emise velocity (minimum drag per unit speed). |

What is the present value of a security : What is the present value of a security that will pay $5,000 in 20 years if securities of equal risk pay 7% annually? |

Create a function in vb and matlab fncdaysinmonth : define in VB: an array of months; in Matlab: a vector matrix of months, containing the number of days in each month. |

Compute the friction force acting between wheel and surface : A wheel (radius 0.6 m) is rolling on a horizontal surface with a center of mass acceleration of 0.7 m/s2. compute the friction force acting between the wheel and the surface |

Determine the required slab thickness of subgrade reaction : the reliability is to be 95%, the overall standard deviation is 0.4, the drainage coefficient is 0.9, delta PSI is 1.7 ( with TSI of 2.5), and the load transfer coefficient is 3.2. the modulus of subgrade reaction is 200 lb/in^3. |

## Determine the horsepower of the devicewater flows from a lake as is shown in fig. p8.40 at a rate of 4.0 cfs. is the device inside the building a pump or a turbine? Explain and determine the horsepower of the device. neglect all minor losses and assume the friction factor is .025 |

## Determine what is the average stream flow in the periodA catchment has an area of 150 ha and a runo/rainfall ratio of 0.40. If due to a 10 cm rainfall over the catchment a stream flow at the catchment outlet lasts for 10 hr, what is the average stream flow in the period |

## Designing the tangent vertical curveDue to a street crossing a roadway, the elevation of the roadway at station 3 +413.760 must be at 129.388 m. Design the curve? |

## Determine what is the angular rotation rate of the carA car is travleing towars a 20 degree slope at 60 mph. The wheels have a radius of 12 in. and the car's wheelbase is 100 in. What is the angular rotation rate of the car immediately after the front wheel contacts the slop |

## Determining maximum acceleration and maximum velocityThe posItIon of a particle along a straight line is given by s = (t 3 - 9t 2 + 1St) ft, where t is in seconds. Determine its maximum acceleration and maximum velocity during the time interval 0 :5: t :5: 10 s. |

## Travel of two particles problemTwo particles start from the same point along the same straight line and at the same instant. The first particle travels with a constant velocity v and the second with a constant acceleration. |

## What must drivers eye height be in van for students claimA civil engineering student contends that 60 mph is safe in a van because of the higher drivers line of site. If all other design inputs are standard, what must the drivers eye height be in the van for the students claim to be valid |

## Calculate the time till the smoke layer is from the floorA room has a floor area of 500 m^2 and a height of 4 m. THe room is involved in a fire with a constant energy release rate of 1 MW. calculate the time till the smoke layer is 1.5 m from the floor for (a) the case where the leakage areas are at the .. |

## Calculate how many minutes it takes for the runner to runA sprinter runs using a force of 200 N and a power output of 600 W. Calculate how many minutes it takes for the runner to run 1 km. |

## Calculate the upward acceleration of the particleA particle of mass 200kg is lifted up vertically by a force of 104N. Assuming the acceleration due to gravity is 10meterper.secondsquare, write a program to calculate the upward acceleration of the particle. |

## Compute the magnitues of all the forces acting on memberCompute the magnitues of all the forces acting on member CDE of the frame. There are pins at C D and E and an 80 kelp force on the right. Length measurements are in ft. |

## Conductive heat loss through the furnace wallAssuming unit surface area, find the conductive heat loss through the furnace wall and the temperature at the interface of the fire clay and red brick. |

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