How many electron states in the H atom have n=4 and l=2?
A. 10
B. 5
C. 3
D. 9
E. 18
F. 6
A. 10
Physics & Space Science
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____________________ formed as Mercury cooled and shrank
Fill in the blank(s) with correct word
Physics & Space Science
Assume everyone in the United States consumes one soft drink in an aluminum can every two days. If there are 300 million Americans, how many tons of aluminum need to be recycled each year if each can weighs 1/16 pound, and one ton = 2000 pounds?
a. 750,000 tons c. 1.7 million tons b. 1.5 million tons d. 3 million tons
Physics & Space Science
Which of these binaries would appear most similar in color telescopically?
A) O2V and M4Ia B) M1V and K9V C) A2Ia and F7Ia D) F3IV and G8III E) F0V and G9III
Physics & Space Science
During retrograde motion, the planet Mars rises in the west and sets in the east.
Answer the following statement true (T) or false (F)
Physics & Space Science