The x and y components of vector s are -30.0 m and +40.0 m, respectively. find the magnitude of s and the angle between the direction of s and the positive direction of the x axis. draw the vector on a two axis coordinate system as well.

,

Explanation:

Let , the magnitude is given by the following formula:

The angle between the direction of and the positive direction of the x axis is:

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.