Diagram 6-2 illustrates a light source, a gas cloud, and three different lines of sight. Along which line of sight would an observer see an emission spectrum?
a.
1
b.
2
c.
3
d.
2 and 3
e.
none of them
B
Physics & Space Science
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An inductor has a current I(t) = (0.500 A) cos[(275 )t] flowing through it. If the maximum emf across the inductor is equal to 0.500 V, what is the self-inductance of the inductor?
A) 4.37 mH B) 3.64 mH C) 2.75 mH D) 0.73 mH E) 1.43 mH
Physics & Space Science
What is the buoyant force on a 1.200 kg solid steel ball submerged in water? (density of steel is 7,900 
A. 1.136 N B. 1.245 N C. 1.489 N D. 1.566 N E. 1.750 N
Physics & Space Science
When the temperature of a solid block of ice is lowered, its volume
A) increases. B) decreases. C) stays the same.
Physics & Space Science
Newton's law of cooling applies to objects undergoing
A) cooling. B) warming. C) both of these D) neither of these
Physics & Space Science