PLS I AM IN NEED! WILL GIVE BRAINLIEST, POINTS, VOTE 5, AND THANKS HURRY

Part A: The sun produces 4.1 ⋅ 1033 ergs of radiant energy per second. How many ergs of radiant energy does the sun produce in 1.15 ⋅ 105 seconds? Show your work. (5 points)

Part B: Which is the more reasonable measurement of the diameter of a human hair:
1.95 ⋅ 10−2 mm or 1.95 ⋅ 102 mm? Justify your answer.

I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α.part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part bsuppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i. e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part cnow try a numerical problem. what is the direction of the vector w = < -1, 6 > ?