1. A fullback with a mass of 105 kg and a velocity of 2.5 m/s due west collides head-on with a defensive back with a mass of 70 kgand a velocity of 4.0 m/s due east. (Take the positive direction to be to the west.)

(a) What is the initial momentum of each player?

momentum of full back

momentum of defensive back

(b) What is the total momentum of the system before the collision?

(c) If they stick together and external forces can be ignored, what direction will they be traveling immediately after they collide?

east

west

## What is g at such an altitudeA diving board length = 5.60 that weighs 250 is supported by two pillars. One pillar is at the left end of the diving board; the other is distance = 1.65 away. Determine the magnitude of the force exerted by the left pillar while an 80.0 diver sta.. |

## Calculate the raduis of the circleAn electron on from the sun enters the earth's magnetic field high above its surface and undergoes a cicular motion. Calculate the raduis of the circle |

## What is the resistance between the ends of the welded barTwo cylindrical bars, each with diameter of 2.50 cm, are welded together end-to-end. One of the original bars is copper and is 0.360 m long, What is the resistance between the ends of the welded bar at 20 oC |

## Determine the escape velocity from the sun for an objectDetermine the escape velocity from the Sun for an object at the Sun's surface (r = 7.5 × 105 km, M = 2.0 × 1030 kg) |

## Calculate the maximum height of the ballOn a distant planet, golf is just as popular as it is on earth. On the distant planet, what is the maximum height of the ball |

## What is the charge on the dropWhat is the charge on the drop. A 13 kg child on a playground swing moves with a speed of 3.6 m/s when the 6.0 m long swing is at its lowest point. What is the angle that swing makes with the vertical when the child is at the highest point. |

## Find the energy transferred to or from it by heatA thermodynamic system undergoes a process in which its internal energy increases by 480 J. find the energy transferred to or from it by heat |

## What is the spacing between the platesWhen a potential difference of 140V is applied to the plates of an air-filled parallel-plate capacitor the plates carry a surface charge density of 4.20E-10 |

## Assume that upward is the positive directionAn asteroid is discovered heading straight toward Earth at 14 km/s . An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10minutes , after which the asteroid is moving at 28degrees to its original pa.. |

## Determine the magnification of the image on the filmA lens for a 35-mm camera has a focal length given by f = 40mm. What is the magnification of the image on the film |

## Calculate the strength of the smallest electric fieldAn ion source is producing 6Li ions, which have mass 9.99 x10-27 kg and charge +e. The ions are accelerated by a potential difference of 30 kV and pass horizontally into the region in which there is a uniform vertical magnetic field of magnitude B.. |

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd