Sean works with sensitive employee information such as Social Security numbers and annual salaries. He knows that this information is safe because his computer has this type of utility.

Lines of longitude are like stripes from the top of the globe down to the bottom virtually slicing the earth like an orange

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

Based on what you know about speed of light and sound, which come/comes first in a thunderstorm