CAN SOMEONE PLEASE HELP ME ASAP

An asteroid is discovered in a nearly circular orbit around the sun, with an orbital radius that is 2.47 times earth's. what is the asteroid's orbital period, its "year," in terms of earth years?

Which sound characteristic is not affected by the relative motion of an object

The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.