Part a: the sun produces 3.9 ⋅ 1033 ergs of radiant energy per second. how many ergs of radiant energy does the sun produce in 2.45 ⋅ 105 seconds? express your answer in scientific notation and show your work. (5 points) part b: which is the more reasonable measurement of the distance between the tracks on a dvd: 7.4 ⋅ 10−4 mm or 7.4 ⋅ 104 mm? justify your answer. (5 points)

step-by-step explanation:

this woman was an important writer and propagandist during the american revolution. she was a member of the committee of correspondence (in fact the committee was formed in her home) and was an advisor to many of the revolutionary leaders, including george washington and john adams. who was this revolutionary woman?

he spend 5.1 minutes chatting with his friends

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5 1/10