Which of these people is most associated with the early use of microscopes?

a. da vinci
b. vesalius
c. de leeuwenhoek

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

Frank just graduated from eighth grade. assuming exactly four years from now he will graduate from high school how many seconds does he have until his high school graduation

The field lines around one end of a bar magnet are shown below based on the diagram, what can you conclude about the pole of the magnet? a.is a south pole because the field hnes spread out from this end b.a north pole because the field lines spread out from this end c.a nouth pole because the field lines enter the magnet at this end d.is a north pole because the field lines enter the magnet at this end