1) Find addition of the given vectors:
V1 = 2 m/s 30° N of E
V2 = 3 m/s 40° N of W

Unit vectors along N, S, E, W are i , -i , j, -j .

To find unit vector along :

V1 = 2 m/s 30° N of E

V2 = 3 m/s 40° N of W

a )

b )

Hence, this is the required solution.

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

hello, i am papaguy.

i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!