[OU.04]Two groups of scientists got different results while studying about the expansion of the universe. What do the two results most likely indicate? the ideas of both groups of scientists are invalid
all scientists do not have access to equally accurate data
there are several testable ideas to describe the origin of the universe
it is impossible to have a single acceptable theory about the universe

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?