A particle of mass 1.0~\text{g}1.0 g moving with velocity v_1 = (3.0~\text{m/s})~\hat{i}- (2.0~\text{m/s})~\hat{j}v 1 =(3.0 m/s) i ^ −(2.0 m/s) j ^ experiences a perfectly inelastic collision with another particle of mass 2.0~\text{g}2.0 g and velocity v_2 = (4.0~\text{m/s})~\hat{j}- (6.0~\text{m/s})~\hat{k}v 2 =(4.0 m/s) j ^ −(6.0 m/s) k ^ . Find the magnitude of the velocity of the formed particle.

Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?

Diamond will scratch quartz. true or false

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n