the comet hale-bopp is 3.75 x 10^10 km away from the sun. how many au away from the sun is it?
5.62 x 10 au
3.75 x 10au
250 au
0.004 au

Which of the following statements about wearher along mountain ranges is correct

Which domain endings indicate websites that are most likely to be reliable sources? check all that apply. sites ending in .net

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks