The clouds of Venus consist mainly of ________.
A. carbon dioxide
B. sulfuric acid
C. carbon monoxide
D. hydrogen and helium
E. water vapor
Answer: B
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Two forces act on a object. One force has magnitude 65 N directed 59° clockwise from the positive x-axis, and the other has a magnitude 35 N at 32° clockwise from the positive y-axis. What is the magnitude of this object's acceleration?
A) 1.1 m/s2 B) 1.3 m/s2 C) 1.5 m/s2 D) 1.7 m/s2
In an RC circuit, how many time constants must elapse if an initially uncharged capacitor is to reach 80% of its final potential difference?
a. 2.2 b. 1.9 c. 1.6 d. 3.0 e. 5.0
Which of the following atoms normally has one covalent bond to it?
a. Br b. O c. C d. P e. Ne
The weight _____________gives the weight of material present in each phase of a two-phase region, but this says nothing about the phase purity.
Fill in the blank(s) with the appropriate word(s).