Describe what might happen if earth’s magnetic field continues to lose strength.

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?

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Which atomic model was proposed as a result of j. j. thomson’s work?