Showing your work clearly, what is the angle between two vectors A and B if
A=3.0i - 4.0j
B=-2.0i+3.0k

Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.

Velocity is the speed of an object in a certain direction so you'd need to know speed and direction