Phenomenon: The sun appears to move across the sky during the day, and stars appear to move across the sky during the night. 1. What questions do you have about this phenomenon?

Why does this happen?

can the motion of these celestial bodies help in telling time?

does this have something to do with the earth's axis?

beta decay is the answer

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current