Charge q1 = -7.5 nC is located at the coordinate system origin, while charge q2 = -1.92 nC is located at (a, 0), where a = 1.3 m. The point P has coordinates (a, b), where b = 0.95 m. A third charge q3 = 13.5 nC will be placed later.

Iknow the first part it is the average star i am not 100% sure

This is kenetic energy.

Shania is trying to determine the oldest geologic unit on this map and the reason to why is she unable to do so is that  the units are all the same age.. when there is the same age, there will be no oldest geologic unit and that i cannot be credible.

Perhaps seek some professional ? it isn't very asking some children who are just trying to find out answers to homework.also, it seems professional would actually be good to you. obviously it isn't going to magically fix your depression, but it'll do something. drugs, smoking weed, it won't do much, especially if your husband is against it. if you do it he'll dislike it. but talk to him, try and get him to listen to you, and figure everything out together, okay? there's a website- maybe it can offer some ?