What is important to remember when you are adding vectors in 2 dimensions? (What do you do with the vectors?)
What rules do you use?

I need the answers now

The answer to this is decibel

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.

The answer is d) by requesting advice on science internet sites