Astone is thrown straight down from the edge of a roof, 1200 ft above the ground, at a speed of 9 ft/sec. a. given that the acceleration due to gravity is -32 ft/sec2, how high is the stone 2 seconds later?

Which is not one of the major climate zones? question 3 options: rain forest polar tropical temperate

For which pair of objects would adding the same a

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?