Q1 a gun shoots bullets that leave the muzzle with a speed

Reference no: EM13354910

Q1. A gun shoots bullets that leave the muzzle with a speed of 326 m/s. If a bullet is to hit a target 172 m away at the level of the muzzle, the gun must be aimed at a point above the target. How far above the target is this point?

Q2. A metal ball with diameter of a half a centimeter and hanging from an insulating thread is charged up with 1020 excess electrons. An initially uncharged identical metal ball hanging from an insulating thread is brought in contact with the first ball, and then moved away, and they hang so that the distance between their center is 22 cm.Compute the electric force one ball exerts on the other, and state whether it is attractive or repulsive. (Enter the magnitude of the force.)

Reference no: EM13354910

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