Answer:
The best description of the general direction that the blue line points is East direction
Answer:
AN electric current is required for an electric charge
Explanation:
Answer:
bro i didn't buy any coffee what are you talking about??
Explanation:
Liquid to cup cup to air / hot energy follows cold energy so because of that the cup is losing thermal energy
Applying the concept of scalar product. We know that vectors must be multiplied in their respective corresponding component and then add the magnitude of said multiplications. That is, those corresponding to the
component are multiplied with each other, then those corresponding to the
component and so on. Finally said product is added.
The scalar product between the two vectors would be:
![\vec{A} \cdot \vec{B} = (4.2\hat{i}+7\hat{j})\cdot (5.7\hat{i}-2.6\hat{j})](https://tex.z-dn.net/?f=%5Cvec%7BA%7D%20%5Ccdot%20%5Cvec%7BB%7D%20%3D%20%284.2%5Chat%7Bi%7D%2B7%5Chat%7Bj%7D%29%5Ccdot%20%285.7%5Chat%7Bi%7D-2.6%5Chat%7Bj%7D%29)
![\vec{A} \cdot \vec{B} = (4.2*5.7) +(7*(-2.6))](https://tex.z-dn.net/?f=%5Cvec%7BA%7D%20%5Ccdot%20%5Cvec%7BB%7D%20%3D%20%284.2%2A5.7%29%20%2B%287%2A%28-2.6%29%29)
![\vec{A} \cdot \vec{B} = 5.74](https://tex.z-dn.net/?f=%5Cvec%7BA%7D%20%5Ccdot%20%5Cvec%7BB%7D%20%3D%205.74)
Therefore the scalar product between this two vectors is 5.74