a student starts at the origin and ends up at a position 500 meters north of the origin. She knows she walked 250 meters west, but she was blindfolded and led to the final position. assume she walked a straight path for the hidden leg of the trip. What displacement vector did she move?

Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg