Consider a situation in which two conducting spheres are far apart, but connected by a long thin conducting wire. The surface of the large sphere is at a potential of 1000 V above ground. The large sphere has a radius of 15 cm and the small sphere has a radius of 2 cm. a) Find the electric field at the surface of each of the spheres. b) Find the total charge on each of the spheres

Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.