Question 4 of 34 How do you add vectors in two dimensions? A. By adding the magnitudes of the vectors B. By lining up the vectors head-to tail, then connecting the beginning of the first vector to the end of the last vector o C. By lining up the vectors head-to-tail, then connecting the beginning of the first vector to the beginning of the last vector D. By subtracting the magnitudes of the vectors su​

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?

When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m

However, had it been a real sound, the sound's pitch would have been increased by the doppler effect, since the falcon was moving the source of the sound. perpendicular to away from towards at the same speed as