A cannon tilted up at a 30.0 angle fires a cannon ball at 70.0 m/s from atop a 30.0m -high fortress wall. What is the ball's impact speed on the ground below?

Explain forms when 3-phenylpropanal is allowed to mix : Show the product that forms when 3-phenylpropanal is allowed to mix with sodium hydroxide catalyst |

Equals free-fall acceleration on earth-rotating cylinders : It has been suggested that rotating cylinders about 9.0 mi long and 6.2 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acce.. |

How much net work must be done on the particle : A 22 particle is moving to the left at 26m/s. How much net work must be done on the particle to cause it to move to the right at 51m/s |

Write a simple atm program : Write a simple ATM program |

Obtain the balls impact speed on the ground below : A cannon tilted up at a 30.0 angle fires a cannon ball at 70.0 m/s from atop a 30.0m -high fortress wall. What is the ball's impact speed on the ground below |

Explain the scn- were not converted completely to fencs2+ : If all the SCN- were not converted completely to FeNCS2+ when the calibration curve was prepared, would this raise or lower the value of Keq |

Are there certain projects in which the traditional approach : Are there certain projects in which the traditional approach |

Calculate what is the minimum amplitude of vibration : A computer to be used in a satellite must be able to withstand accelerations of up to 27 times the acceleration due to gravity. What is the minimum amplitude of vibration |

Portfolio of common stocks in companies : Discuss how the portfolio beta compares to your own willingness to take risks. Discuss whether you would rather hold an individual stock or a portfolio of stocks. please properly cite your work. |

## What is the stopping distanceA car is traveling in the x direction with a velocity of 20 m/s. The driver applies the brakes, What is the stopping distance |

## Find the total momentum of the system of the two cartsA 2.0-kg cart is rolling along a frictionless, horizontal track towards a 1.0-kg cart that is held initially at rest. find the total momentum of the system of the two carts |

## What is the bright fringe separationa double-slit arrangment prduce bright interference fringrs that are seprated by 2.60 mm when the wavelengt is 589nm. what is the bright fringe separation |

## Find the speed of electron as it strikes the second plateA uniform electric field exists in a region between two oppositely charged plates. find the speed of the electron as it strikes the second plate |

## Draw a energy-transfer diagram for this situationAn engine has an efficiency e1. The engine takes input heat QH from a hot reservoir and delivers work W1. The heat rejected by this engine is used as input heat for a second engine. |

## What is the acceleration during skiddingA 800 kg car is travelling forwards at + 25 m s?1 along a level road. What is the acceleration during skidding |

## For what finite values of x is the electric potential zeroA charge +q is at the origin. A charge -2q is at x = 9.10 m on the +x axis. (a) For what finite value of x is the electric field zero? (b) For what finite values of x is the electric potential zero? (Note: Assume a reference level of potential V =.. |

## What is her final velocity when she reaches the bottomNow your cousin wants to go on the playground slide, which is 1.5 meters long and has an incline of 30 degrees. what is her final velocity in ms when she reaches the bottom |

## How far up the ladder can a person climbA 46kg box is being pushed a distance of 7 m across the floor by the force vector P whose magnitude is 144N. The force vector P is parallel to the displacement of the box. |

## Find the protons speed when it reaches the negative plateThe electric field strength is 4.80×10^4 V/m inside a parallel-plate capacitor with a 2.5 mm spacing. find the proton's speed when it reaches the negative plate |

## Estimate the direction of the induced current in the coilA four-turn rectangular coil has a spatially varying magnetic field directed through its center as shown. The magnetic field is given by [(B)\vec] = 4.2 y2 t [^(k)], Find the direction of the induced current in the coil |

## Sketch a free-body diagram of the plankSketch a free-body diagram of the plank. How far can a painter of mass 70.0 kg walk on the overhanging part of the plank before it tips. |

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