A stone thrown from the top of a building at a velocity of 16.0 m/s at an angle of 37° with the horizontal reaches the ground after 8.0 s. (a) What is the initial vertical velocity and initial horizontal velocity of the stone? (b) What is the height of the building? (c) What is the horizontal range of the stone? (d) What are the final vertical and horizontal velocities of the stone? (e) Where is the velocity and acceleration perpendicular and where is the velocity and acceleration parallel in a projectile motion?

The two metal spheres in the figure are connected by a metal wire with w switch in the middle. initially the switch is open. sphere 1, with the larger radius, i'd given a positive charge. sphere 2, with the smaller radius, is neutral. then the switch is closed. afterward, sphere 1 has charge q1, is at potential v1 and the electric field strength at its surface is e1. the values for sphere 2 are q2, v2, and e2. a. is v1 < ,> , or = to v2? explain. b. is q2 < , > , or = explain? c. is e1 < ,> ,or = to e2? explain?