The ground state configuration of chlorine (Z = 17) is
a. 1s2 2s2 2p5 3s2 3p6
b. 1s2 2s2 2p6 3s2 3p5
c. 1s2 2s2 2p6 3s2 3p4 3d1
d. 1s2 2s2 2p6 3s2 3p5 4s1
e. 1s2 2s2 2p6 3s1 3p7
b
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Two beams of coherent light start out at the same point in phase and travel different paths to arrive at point P. If the maximum constructive interference is to occur at point P, the two beams must travel paths that differ by
A) an odd number of half-wavelengths. B) a whole number of half-wavelengths. C) a whole number of wavelengths.
Standing Sound Waves: An organ pipe that is 1.75 m long and open at both ends produces sound of frequency 303 Hz when resonating in its second overtone. What is the speed of sound in the room?
Fill in the blank(s) with the appropriate word(s).
A jet of water flowing from a hose at 18 m/s is directed against a wall. If the mass flow in the fluid stream is 2.0 kg/s, what force is the water applying to the wall if backsplash is negligible?
a. 36 N b. 0.11 N c. 38 N d. 350 N e. 34 N
You have discovered a star system consisting of three equally spaced stars of equal mass arranged in a straight line. The two outermost stars, Zenith and Nadir, revolve synchronously around the central star, Janus
What is the period of revolution for this system in terms of M, the mass of each of the stars, and R, the radius of the circular orbit of Zenith and Nadir? A) [2?R3/2/(GM)1/2] × (3/2)1/2 B) [2?R3/2/(GM)1/2] × (2/3)1/2 C) [2?R3/2/(GM)1/2] × (4/5)1/2 D) [2?R3/2/(GM)1/2] × (5/4)1/2 E) [2?R3/2/(GM)1/2] × (7/5)1/2