PLEASE HELP A vector points -1.55 units along the x-axis and 3.22 units along the y-axis find the direction of the vector. I really don't understand how to do this and I have to take my final. Please help me I will mark brainiest or something like that I don't know but please.

An uplifted block of rock between two normal faults

Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate

In a hydrogen molecule there are a total of four charges, 2 protons in the two nuclei, and 2 electrons. how many unique charge-pairs are there (without double counting)?