Let's ignore any frictional forces in the winch in VP 9.8.1. Let v1v1 be the speed of the bucket after it has fallen a distance h/2h/2 and v2v2 be speed of the bucket after it has fallen the full depth of the well, hh. Determine the ratio of the speeds, v2v1v2v1. Express your answer to three significant figures.

One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.

Why does some plastic stick to your skin?