8) Consider two vectors A and B where: Ā= -6.00 i +3.00 9 +3.00 Â

B = 6.00 î - 8.00 ġ + 4.00 k

=

If we want to find the angle between these two vectors, we have two possible options: we can

use the magnitude of the dot product, or the magnitude of the cross product.

A B = AB cos(0)

|X XB= AB sin(0)

However, these approaches give conflicting answers for the value of 0.

a) What is the correct value of theta?

b) Why does the other formula give the wrong answer?

Answer ( slope);

Answerthe energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.explanationwe define electric potential as the ratio electric potential energy to the charge,    then the following gives us the potential difference,      the formula  may be on your formula sheet.the change in electric potential energy would be the energy that would needed to move it from point a to point b. solving for that, we get    using q = 8.00  × 10⁻¹⁹ c and  δv = 2.00 v, we get    the energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.