A projectile is fired with an initial velocity of 800 ft/s at a target B located 2000 feet above the gun A and at a horizontal distance of 12,000 feet. Neglecting air resistance, determine the value of the angle at which the projectile is fired.

Calculate the amplitude of vertical motion of the machine : A machine is supported on four steel springs for which damping can be neglected. The natural frequency of vertical vibration of the machine-spring system is 200 cycles per minute. The machine generates a vertical force p(t)=p0sinwt. |

Calculate the density of the solvent : A cylindrical storage tank has a radius of 1.22 m. When filled to a height of 3.71 m, What is the density of the solvent |

What is the level of her permanent income : How much will she set aside each year to achieve her retirement goal? What is the level of her consumption spending p.a.? |

The marketplace can often create efficiencies naturally : Government regulation is, at times, a result of market failure. The marketplace can often create efficiencies naturally through supply and demand. Unfortunately gaps of inefficiencies result in market dislocations. Thus governments believe they can r.. |

Find the value of the angle at which the projectile is fired : A projectile is fired with an initial velocity of 800 ft/s at a target B located 2000 feet above the gun A and at a horizontal distance of 12,000 feet. Neglecting air resistance, determine the value of the angle at which the projectile is fired. |

Find the weight of the water in the bed : A water bed for sale has dimensions of 1.83 m x 2.13 m x 0.229 m. Find the weight of the water in the bed |

Explain why you would change your nominal required rate : Explain why you would change your nominal required rate of return if you expected the rate of inflation to go from 0 (no inflation) to 4 percent. Give example of what would happen if you did not change your required rate of return under these cond.. |

Why do we see cigarette butts and other trash by the side : Why do we see cigarette butts and other trash by the side of the road and often by the end of an interstate exit ramp? In other words, consider why we see litter where we see it as well as where we don’t |

Determine the acceleration of the vehicle immediately : A vehicle is traveling on a curved section of a road of radius 2500 feet at a speed of 60 mi/h. The motorist suddenly applies their brakes, causing the automobile to slow down at a constant rate. After 8 seconds the speed has been reduced to 45 mi.. |

## Direction of flow in a conical tubeA conical tube of length 8 m fixed vertically with its smaller end upwards. The velocity head and pressure head at upper ends are 1.27 m and 2.50 m respectively. |

## Cstr reactors of equal volume in seriesCompare the total reactor volume required for 90% removal of the same pollutant in a CSTR system that contains a single reactor against a system that contains three CSTR reactors of equal volume in series. |

## 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 |

## Explain how to compute a satisfactory curve lengthat one point on the highway, a 720 ft equal-tangent crest vertical curve exists. measurements show that at 3+40 stations from the PVC, the vertical curve offset is 3.5 ft. assess the adequacy of this existing curve in light of the reconstruction d.. |

## Determine how high an elevated reservoir must beOften times, this pressure comes from the fact that community's water supply is stored in an elevated reservoir. Determine how high an elevated reservoir must be so that the water supply has a pressure of 50 psi. Given: the unit weight of water is.. |

## Determine what percent of the hocl is dissociatedA solution of HOCl is prepared in water by adding 15 mg HOCl to a volumetric flask, and adding water to the 1.0 L mark. The final pH is measured to be 7.0. What are the concentrations of HOCl and OCl |

## 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. |

## What is the elevation of the tip of the spireThe telescope of the instrument is 5.25 ft above the ground station, whose elevation is 415.65 ft. What is the elevation of the tip of the spire? (Ignore atmospheric refraction and earth curvature) |

## What is the minimum coefficient of road adhesion neededThe owners wish to achieve an initial acceleration from rest of 22 ft/(sec^2) on a level paved surface. What is the minimum coefficient of road adhesion needed to achieve this acceleration |

## How long would it take for the sled to reach at end of trackIn 2003 at Holloman Air Force Base in New Mexico, test engineers set a world record by moving 192 lb payload at 6,453 miles per hour in a rocket sled. The rocket sled track, built in 1954, is 15.44 km in length. |

## Compute the critical depth and critical velocity for flowA rectangle channel 20 feet wide carries a discharge Q= 200cfs. Compute the critical depth and critical velocity for the flow in the channel. |

## Determine the acceleration of the carMotor M draws in the cable with an acceleration of 4 , measured relative to the 220 mine car. Determine the acceleration of the car. Neglect the mass of the pulleys. |

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