The atomic symbol represents
A) the number of electrons in an atom of an element.
B) the name of the element.
C) the history of the element.
D) All of the above.
E) Only two of the above.
Answer: E
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The pressure inside a commercial airliner is maintained at 1 atm (1.01 × 105 N/m2). What is the outward force exerted on a 1.0 m × 2.0 m cabin door if the outside pressure (at 10-km height) is 0.3 atm?
A. 1.4 × 102 N B. 1.4 × 103 N C. 1.4 × 104 N D. 1.4 × 105 N E. 7.0 × 103 N
In a parallel circuit, the size of the current flowing through each device may be different
a. True b. False Indicate whether the statement is true or false
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A. A
B. B
C. C
D. D
E. E
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a. are found on Earth. b. are found on Jupiter. c. indicate the presence of a magnetic field. d. occur when particles in the solar wind hit a planet’s atmosphere. e. all of the above.