A solid conducting sphere with radius R that carries positive charge Q is concentric with a very thin insulating shell of radius 2R that carries charge −2Q. The charge −2Q is distributed uniformly over the insulating shell. Part A Find the magnitude of the electric field in the region 0

Which two particles are found in the center of an atom

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?