A Group 7A element would be most likely to form a covalent bond with elements of Group
a. 2A.
b. 1A.
c. 8A.
d. 6A.
d
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A proton with a kinetic energy of 0.20 keV follows a circular path in a region where the magnetic field is uniform and has a magnitude of 60 mT. What is the radius of this path?
a. 4.1 cm b. 2.9 cm c. 3.4 cm d. 5.1 cm e. 2.4 cm
Suppose the interior angles of a triangle are ?1, ?2, and ?3, with ?1 > ?2 > ?3 . Which side of the triangle is the shortest?
a. The side opposite ?1 b. The side opposite ?2. c. The side opposite ?3 d. More information is needed unless the triangle is a right triangle.
What is the occupancy probability at an energy of 12.00 eV for a material with EF = 11.63 eV at a temperature of 500 K?
A) 3 x 10-4 % B) 2 x 10-2 % C) 2% D) 6% E) 12%
Two solenoids, wound from wire from the same spool, have the same length and cross-sectional area, but solenoid #1 has twice the turns of solenoid #2 . If these solenoids are each connected to a circuit, and the only non-negligible resistance is that of the solenoids, which solenoid gives the greater time constant and by what factor?
a. #2 by a factor of 2 c. #1 by a factor of 2 b. #2 by a factor of 4 d. No answer above is completely correct.