Exclusion Principle: How many electrons will fit into a 4f subshell?

A. 3
B. 4
C. 7
D. 14


Answer: D

Physics & Space Science

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Fusion is used to produce the largest nuclei known to exist

Indicate whether the statement is true or false

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A plane truss composed of two steel pipes (E 5 210 GPa, d 5 100 mm, and wall thickness 5 6.5 mm) is subjected to vertical load W at joint B. Joints A and C are L 5 7 m apart. The critical value of load W for buckling in the plane of the truss is nearly:

(A) 138 kN
(B) 146 kN
(C) 153 kN
(D) 164 kN

Physics & Space Science

Telescopes observing in the far ultraviolet can work from high-flying aircraft

Indicate whether the statement is true or false

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Silicon doped with impurities is used in the manufacture of semiconductor devices.

a. True b. False

Physics & Space Science