During an MRI, when the radio signal is removed and the hydrogen protons re-align with the magnetic field, they emit their own radio waves. Suggest why this might occur.

Which characteristics can be used to differentiate star systems? check all that apply.

Select the most likely product for this reaction: koh(aq) + co2(g) – ? k2co3(aq) + h2o(1) k(s) + h2(g) + o2(g) k(s) + co3(9) +h2

If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.