Exclusion Principle: Which one of the following is the correct electronic configuration for carbon, which has 6 electrons?

A. 1s2 2s2 2p2
B. 1s1 2p1
C. 1s1 2s2 2p1
D. 1s1 2s1 2p1
E. 1s2 2s2 2p4


Answer: A

Physics & Space Science

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Velocity: A runner runs around a track consisting of two parallel lines 96 m long connected at the ends by two semicircles with a radius of 49 m. She completes one lap in 100 seconds. What is her average velocity?

A. 2.5 m/s B. 5.0 m/s C. 10 m/s D. 0 m/s E. 1.3 m/s

Physics & Space Science

The wire in Fig. 29-2 carries a current I that is decreasing with time at a constant rate. The induced emf in each of the loops is such that

A) no emf is induced in any loop. B) all loops experience counterclockwise emf. C) loop A has clockwise emf, loop B has no induced emf, and loop C has counterclockwise emf. D) loop A has counterclockwise emf, loop B has no induced emf, and loop C has clockwise emf. E) loop A has counterclockwise emf, loop B clockwise emf, and loop C has clockwise emf.

Physics & Space Science

A 3 kg block, initially moving due east at 6 m/s, is acted upon by an impulse having magnitude 6 Ns and direction due west. The final velocity of the block is

A. 4 m/s east. B. 4 m/s west. C. 8 m/s west. D. 8 m/s east.

Physics & Space Science

The SI units of velocity are

a. mi/h b. km/h c. m/s2 d. m/s e. none of the above

Physics & Space Science