Assume you are a medieval knight attacking a castle with a cannon. The cannonball leaves the cannon with a speed of 40.7 m/s, and the barrel's angle with respect to the ground is 32.1°. You make a perfect hit on the king's chamber, which is at the same height as the cannon's muzzle. What is the time of flight of the cannonball, from when it leaves the cannon's muzzle to when it hits the king's chamber? (Ignore air resistance.

What is the derivative of velocity as a function of time : what is the derivative of position as a function of time? what is the derivative of velocity as a function of time |

Obtain the force of friction : The weight of the car is 14 kN. You know three points on the plane, What is the force of friction (Ff=?). |

Explain flask at a certain temp according to the equation : A mixture containing 3.7 moles of NO and 0.88 mole of CO2 was allowed to react in a flask at a certain temp according to the equation |

Show how the pn flip-flop can be converted to a dflip-flop : A PN flip-flop has four operations, clear to 0, no change,complement, and set to 1, when inputs P and N are 00, 01, 10, and11, respectively. (a) Tabulate the characteristic table. (b) Derive the characteristic equation. |

What is the time of flight of the cannonball : Assume you are a medieval knight attacking a castle with a cannon. The cannonball leaves the cannon with a speed of 40.7 m/s, What is the time of flight of the cannonball |

Design circuit to diplay the decimal equivalent of bcd-value : design a circuit to diplay the decimal equivalent of a 4-bit BCD value, input via swiches on the logic designer,on a seven segment display. use 7448 BCD to sevn segment decoder to do this. show the 7448 as a single functional unit. |

Compute the maximum potential difference between the disks : Two 5.5 5.5 metal plates are separated by a 0.21--thick piece of Teflon. compute the maximum potential difference between the disks |

Express the reactances and the impedance in percent : Aportion of a power system consists of two generators operating inparallel, connected to a step-up transformer that links them with a230 kV transmission line. The ratings of these components are; Generator G1:10MVA, 12 % reactance |

Which starts and stops counting on successive pulses : Suppose one is given a modulo-2N counter that consists of N "T" flip-flops running on a 1.0 Hz clock source. Using an external input line, convert the counter into a stop watch, which starts and stops counting on successive pulses on the external .. |

## What is its speed when it is very far from the earthn object is projected from the surface of the earth with a speed of 1.98×104 m/s. What is its speed when it is very far from the earth |

## Evaluate their kinetic energiesEight books, each 4.9 cm thick with mass 1.2 kg, lie flat on a table. How much work is required to stack them one on top of another. |

## What is the orbital radius of the asteroid beltThe asteroid belt circles the sun between the orbits of Mars and Jupiter. What is the orbital radius and speed of the asteroid belt |

## Locate the final image relative to the lens on the rightTwo converging lenses (f1 = 9.00 cm and f2 = 6.00 cm) are separated by 18.0 cm. The lens on the left has the longer focal length. Locate the final image relative to the lens on the right |

## Find the mass density of the oxygen gasA sealed 62 m3 tank is filled with 6000 moles of ideal oxygen gas (diatomic) at an initial temperature of 270 K. find the mass density of the oxygen gas |

## What is the potential difference between the plateswhat is the potential difference between the plates. A particular freely falling object requires 1.85 s to travel the last 31.0 m before it hits the ground. From what height above the ground did it fall. |

## The first-order dark fringe be observedCoherent light with wavelength 599nm passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3.00m from the slits. The first-order bright fringe is a distance of 4.84mm from the center of central brigh.. |

## At first the wheel rotates with an angular speedFind out the moment of inertia of the wheel if the block rises to a height of = 7.70 cm before momentarily coming to rest. |

## Find the force that the table exerts on the boxA 5 kg box rests on a table. Amassless string in attached to the box and is hung over a massless, frictionless pulley. find the force that the table exerts on the box |

## Locate and describe the image of a patient from the mirrorAt an intersection of hospital hallways, a convex mirror is mounted high on a wall to help people avoid collisions. Using a scales 3-ray diagram, locate and describe the image of a patient 10.0 m from the mirror. |

## Find the magnitude of the normal force on the crateA crate of weight W is being pushed across a horizontal surface by a force directed at an angle of 20 degrees below the horizontal. find the magnitude of the normal force on the crate |

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