Ball 1, with a mass of 110 and traveling at 14.0 , collides head on with ball 2, which has a mass of 320and is initially at rest. What are the final velocities of each ball if the collision is perfectly elastic? What are the final velocities of each ball if the collision is perfectly inelastic?

## How close does the proton get to the line of chargeAn infinitely long line of charge has linear charge density 4.00 10-12 C/m. A proton (mass 1.67 10-27 kg, charge +1.60 10-19 C) is 17.0 cm from the line and moving straight toward the line at 3000m/s. |

## Calculate the velocity of this protonConisder the Earths magnetic field (53 uT) at a point near the equator where the field is horizontal, Calculate the velocity, V of this proton |

## Determine at what speed was the car travelingA sports car crosses the bottom of a valley with a radius of curvature equal to 95m. At what speed was the car traveling |

## Find the average horizontal force exerted by the groundFind the average horizontal force exerted by the ground on the feet of a sprinter of mass 44.1 kg who accelerates from rest to a speed of 12.4 m/s in a time interval of 1.00 s |

## Find the magnification of the microscopeA microscope uses an eyepiece with a focal length of 1.65 cm . Using a normal eye with a final image at infinity, What is the magnification of the microscope |

## What is the electric field intensity at that pointTwo charged bodies exert an electrostatic force of 144 N on each other. If the distance between them is quadrupled and magnitude of one charge is cut in half, what is the new force between them. |

## What angle does the emerging rayA flashlight on the bottom of a 3.70 m deep swimming pool sends a ray upward at an angle, What angle (in air) does the emerging ray make with the water's surface |

## What is the maximum height the box will reachA box of mass of mass 2 kg is placed on a spring such that when the box is released, the spring will push the box directly upward. what is the maximum height the box will reach |

## Find dividends yield-price or earnings ratio and returnKras, Inc., was organized and authorized to issue 50,000 shares of $100 par value, 9 percent [referred stock and 50,000 a shares of no-par, $5 stated value common stock on July 1, 2011. |

## Question1a hiker makes four straight-line walks a 20 km atquestion1a hiker makes four straight-line walks a 20 km at 274o b 12km at 48onbspc 33 km at 150onbspd 30km at 20onbspin |

## What is the fundamental frequency for this pipeYou have an organ pipe that resonates at frequencies of 800, 1120, and 1440 Hz but nothing between these. What is the fundamental frequency for this pipe |

## Q1 determine the force of gravity between earth massq1. determine the force of gravity between earth mass 6.0x1024kg and the moon mass 7.4x1022kg. the average earth-moon |

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