Q1. An electric force of 4.0 N exists between two objects separated from each other by a distance of r. If the distance is decreased to 0.50 r, compute the magnitude of the force between the two objects.

Q2. If an object weighs 50lbs and it gets hit by a car with a force of 6400N and there's a frictional force of -34N, what is the net force?

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Consider an infinite wire with radius carriesa current i : Consider a large parallel plate capacitor with circular plates of radius R. suppose that the electric field between the plates is increasing. |

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Compute the magnitude of the force between the two objects : An electric force of 4.0 N exists between two objects separated from each other by a distance of r. If the distance is decreased to 0.50 r, compute the magnitude of the force between the two objects. |

Find out the speed of the combination after collision : A 4.00-kg model rocket is launched, expelling 54.9 g of burned fuel from its exhaust at a speed of 690 m/s. What is the velocity of the rocket after fuel has burned. |

Conclude the number of atoms in 1 cm3 of copper : Visualize the one cubic centimeter as formed by stacking up identical cubes, with one copper atom at the center of each. Determine the volume of each cube. |

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