When steam condenses, the H2O
1) releases energy.
2) absorbs energy.
3) neither of these.
When water freezes, the H2O
4) releases energy.
5) absorbs energy.
6) neither of these.
Answer: 1, 4
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A. A B. B C. C D. D E. E
If a calculated quantity has units of T ? m/A, that quantity could be
A) an electric field. B) an electric potential. C) ?0. D) a magnetic field. E) a magnetic torque.
The circuit below contains 4 100-W light bulbs. The emf is 110 V. Which light bulb(s) is(are) brightest?
a.
A
b.
B
c.
C
d.
D
e.
C and D
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