The electric field lines between a pair of equal and opposite charges are
A) directed from positive to negative.
B) more concentrated closer to the charges.
C) vectors, with patterns resulting from the inverse-square law.
D) all of the above
E) none of the above
Answer: D
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a. 0.25. b. 0.50. c. 1.0. d. 2.0. e. 4.0.
Red-colored diode lasers for pointers and surveying are made from pnjunctions of the compound semiconductor GaAs that has an energy gap of 1.42 eV. What is the wavelength of the light from a GaAs laser?
What will be an ideal response?
A rigid cylinder (15 cm radius, 15 cm height) contains nitrogen gas 
at standard temperature and pressure. What is the total translational kinetic energy of the gas molecules in the cylinder?
A. 1.6 kJ B. 0.51 kJ C. 0.86 kJ D. 2.7 kJ
In the gas laws, the ______________ temperature scale must be used
Fill in the blank(s) with correct word