Q1. A 1000 kg car travelling at a speed of 20 m/s skids to a halt on wet concrete where f_k = 0.50. How long is the cars skid marks?

Q2. The potential at location A is 481 V. A positively charged particle is released there from rest and arrives at location B with a speed vB. The potential at location C is 878 V, and when released from rest from this spot, the particle arrives at B with twice the speed it before had, or 2 vB. Find out the potential at B.

Find the rate of wheel''s rotation in revolutions per minute : An electron starts from rest 75.5 cm from a fixed point charge with Q = -0.150 µC. How fast will the electron be moving when it is too far away. |

Find out the mass of worker : A 29.0 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 85.0 N and is directed at the angle of 30.0° above the horizontal. Find out the coefficient of kinetic friction. |

What is the magnitude of the horizontal net force : Two points are located on a rigid wheel that is rotating with an increasing velocity about fixed axis. The axis is perpendicular to the wheel at its center. Point 1 is located on the rim and point 2 is halfway between rim and axis .at any given insta.. |

What is the acceleration of satellite : A 2,700-kg satellite is in a circular orbit around a planet. The satellite travels with a constant speed of 6,270 m/s. The radius of the circular orbit is 8.72 × 10^6 m. What is the acceleration of satellite. |

How long is the cars skid marks : The potential at location A is 481 V. A positively charged particle is released there from rest and arrives at location B with a speed vB. The potential at location C is 878 V, and when released from rest from this spot, the particle arrives at B wit.. |

Compute the rate at which mechanical energy is transferred : Estimate the speed of the water just before striking the turbine blades (overlook air resistance). |

Simple generator by using a single square loop : If the distance between two slits is 0.031 mm and the distance to a screen is 2.50 m, find the spacing between the first- and second-order bright fringes for yellow light of 500 nm wavelength. |

What is the strength of the field : A proton travels with the speed of 8.34×105 m/s at an angle of 32.3° with the direction of a magnetic field. The field exerts a force of 3.00×10-17 N on the proton. What is the strength of the field. |

What is the electric field strength at the point : A 1.0 ball hangs from the ceiling of a truck by a 1.0--long string. The back of truck, where you are riding with the ball, has no windows and has been completely soundproofed. The truck travels along an exceedingly smooth test track, and you feel no .. |

## What is the force constant of the springWhile a force of 6.0 N is applied, pulling the spring to the right, the elongation of the spring is 0.030m from its equilibrium position. What is the force constant of the spring |

## Illustrate the force vectors with their tailsIllustrate the force vectors with their tails at the origin of coordinate system. The orientation of your vectors will be graded. The exact lengths of your vectors will not be graded but relative length of one to the other will be graded. |

## What is an electric flux through the cubeA particle of charge +1.5 nC is placed at a corner of a Gaussian cube with sides 12.0cm. What is an electric flux through the cube. |

## Establish its length as measured by a person on earthThe pilot of the spaceship measures the length of the moving ship as 30 meters. Establish its length as measured by a person on earth. |

## Find the speed of the golf ball just after impactF ind the speed of the golf ball just after impact |

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