The principal quantum number can have any integer value ranging from
A)
-? to +?.
B)
0 to ?.
C)
1 to ?.
D)
1 to n.
E)
1 to 100.
C
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Instructions: On occasion, the notation 
will be a shorthand notation for 
.
The displacement of the tip of the 10 cm long minute hand of a clock between 12:15 A.M. and 12:45 P.M. is:
A. 10 cm, 90° B. 10 cm, 180° C. 10 cm, 4 500° D. 20 cm, 180° E. 20 cm, 540°
What is the potential difference VB ? VA when I = 0.50 A in the circuit segment shown below?
a.
+28 V
b.
+2.0 V
c.
?28 V
d.
?2.0 V
e.
+18 V
Think of Bernoulli's equation as it pertains to an ideal fluid flowing through a horizontal pipe. Imagine that you take measurements along the pipe in the direction of fluid flow. What happens to the sum of the pressure and energy per unit volume?
a. It increases as the pipe diameter increases. b. It decreases as the pipe diameter increases. c. It remains constant as the pipe diameter increases. d. No choices above are valid.
Even though Titan has liquid methane on its surface, some internal heat, and plenty of carbon-containing compounds, it is not a suitable place for life because
A) Titan orbits within Saturn's radiation belt so its surface is completely sterilized by high-energy particles B) there is too much volcanic activity on the surface C) it has no ozone layer to protect the surface from harmful UV rays from the Sun D) it is far too cold, and methane is not a very good biological solvent