Abody makes six complete revolution in 4.0sec if it makes in a circle of raduis 25.0cm calculate th linear velocity

True or false: the revolution of the earth creates day and night as it rotates around the sun

Diamond will scratch quartz. true or false

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?