The wavelength of the emitted photon when a hydrogen atom makes a transition from the n = 2 state to the ground state is closest to which of the following values? (c = 3.0 108 m/s, h = 6.626 10-34 J s, 1 eV = 1.60 10-19 J)
A) 122 nm
B) 203 nm
C) 243 nm
D) 389 nm
E) 411 nm
Question 2
A 1.0-C point charge is 15 m from a second point charge, and the electric force on one of them due to the other is 1.0 N. What is the magnitude of the second charge? (k = 1/40 = 8.99 109 N m2/C2)
A) 25 C
B) 1.0 C
C) 10 nC
D) 0.025 C
E) 25 nC
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The Helium Atom.
Atom formation
Change in Emotional States During Adolescence Average emotional state becomes teadilyi more negativ
This map shows the percentage of Protestants by state in Germany. When compared to the previous map
This chart illustrates the four quadrants in which we can place the relationships between the state