A=i-j+k then unit vector in the direction of A a) √3.j
b)(i-j+k)
c)(i-j-k)/√2
d)(i-j+k)/√3
please answer my questions with explanation .
and i , j and k are with ^(cap)
as components of x, y and z axis ​

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

When electrons are added to the outermost shell of a carbon atom, it forms--an anion that has a larger anion that has a smaller cation that has a larger cation that has a smaller radius.

Consider two regions of space containing a static electric field, region a and region b. in region a the equipotential lines are more closely spaced than those in region b. what can be said about the relative strength of the electric field in the two regions? a) the electric field in region a is stronger th