A hydrogen atom is in the 6h state. What is the principal quantum number
A) 0
B) 3
C) 5
D) 6
E) 7
D
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Potential of Point-Charges: A square is 1.0 m on a side. Point charges of +4.0 ?C are placed in two diagonally opposite corners. In the other two corners are placed charges of +3.0 ?C and -3.0 ?C. What is the potential (relative to infinity) at the midpoint of the square? (k = 1/4??0 = 9.0 × 109 N ? m2/C2)
A. 1.0 × 104 V B. 1.0 × 105 V C. 1.0 × 106 V D. 0 V E. infinite
In Europe, what weather phenomenon coincided with the Maunder Minimum?
What will be an ideal response?
The intensity of an electromagnetic wave is 8 × 107 W/m2. What is the amplitude of the magnetic field of this wave?
A) 8.2 × 10-4 T B) 3.3 × 10-7 T C) 10 T D) 14 T E) 5.8 × 10-4 T
A charged insulator can be discharged by passing it just above a flame. This is because the flame:
A) warms it B) dries it C) contains carbon dioxide D) contains ions E) contains more rapidly moving atoms