What is the magnitude of the potential difference across the 20-? resistor?
A. 3.2 V
B. 7.8 V
C. 11 V
D. 5.0 V
E. 8.6 V
Answer: B
Physics & Space Science
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A solution with a pH of 8 is
a. strongly acidic. b. weakly basic. c. strongly basic. d. weakly acidic.
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Which of these would be made up of only Population II stars?
A) Seyfert spirals B) Irr type II C) elliptical galaxies D) barred spirals E) Irr type I
Physics & Space Science
If ? = 8.0 V, at what rate is that emf providing energy to the circuit shown below?
a.
8.4 W
b.
7.6 W
c.
5.6 W
d.
11 W
e.
2.0 W
Physics & Space Science
A chemical change results in
A) new atoms. B) a physical change. C) new materials. D) a new phase.
Physics & Space Science