Find the direction and magnitude of the vectors.

Find the magnitude of the vector {\vec A} = (5.1 {\rm m}){\hat x} + (-2.1 {\rm m}){\hat y}.

Find the direction of the vector {\vec A} = (5.1 {\rm m}){\hat x} + (-2.1 {\rm m}){\hat y}.

Find the magnitude of the vector {\vec B} = (1.1 {\rm m}){\hat x} + (4.8 {\rm m}){\hat y}.

Find the direction of the vector {\vec B} = (1.1 {\rm m}){\hat x} + (4.8 {\rm m}){\hat y}

Find the magnitude of the vector {\vec A} + {\vec B}.

Find the direction of the vector {\vec A} + {\vec B}.

Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)

How to tell if a molecule is polar or nonpolar with electronegativity

The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db