here as it is given that x component of the vector is positive while y component of the vector is negative so we can say the vector must inclined in Fourth quadrant.
So angle must be more than 270 degree and less than 360 degree
Now in order to find the value we can say that
![tan\theta = \frac{opposite\: side}{adjacent\: side}](https://tex.z-dn.net/?f=tan%5Ctheta%20%3D%20%5Cfrac%7Bopposite%5C%3A%20side%7D%7Badjacent%5C%3A%20side%7D)
![tan\theta = \frac{8.6}{6.1}](https://tex.z-dn.net/?f=tan%5Ctheta%20%3D%20%5Cfrac%7B8.6%7D%7B6.1%7D)
![\theta = tan^{-1}1.41](https://tex.z-dn.net/?f=%5Ctheta%20%3D%20tan%5E%7B-1%7D1.41)
![\theta = 54.65^0](https://tex.z-dn.net/?f=%5Ctheta%20%3D%2054.65%5E0)
so it is inclined at above angle with X axis in fourth quadrant
Now if angle is to be measured counterclockwise then its magnitude will be
![\theta = 360 - 54.65 = 305.3^0](https://tex.z-dn.net/?f=%5Ctheta%20%3D%20360%20-%2054.65%20%3D%20305.3%5E0)
so the correct answer will be 305 degree
The density of ice is less than the density of water. C
The answer is C. Final position minus initial position.
Solid and liquids are much more denser than gas because their molecules are close to each other and with that the molecules of them can't move that freely unlike the gas molecules. Also, because of being near to each other the molecules of solid and liquids became heavy making them dense.
The answer is cardiovascular.