The plates of a parallel-plate capacitor are maintained with constant voltage by a battery as they are pulled apart. What happens to the strength of the electric field during this process?
A) It decreases.
B) It increases.
C) It remains constant.
D) There is no way to tell from the information given.
A
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Edgar Jones, angry at having purchased a tasteless pizza, drops his pizza off the Brooklyn bridge. As it falls, Edgar's pizza has a constant [or unchanging]
(NOTE: Neglect air resistance.) A) velocity. B) speed. C) acceleration. D) position. E) All of the above.
The creation of elements inside a star is called ______________
Fill in the blank(s) with correct word
An atom loses its two outermost electrons. How does the resulting ion behave when it is near a positively charged transparency? How does the ion behave when it is near a negatively charged tissue?
A) The ion is repelled from both the transparency and from the tissue. B) The ion is attracted to both the transparency and to the tissue. C) The ion is attracted to the positively charged transparency, but repelled from the negatively charged tissue. D) The ion is repelled from the positively charged transparency, but attracted to the negatively charged tissue.
Magnesium has 12 protons. How many electrons are in its second energy level?
a. two b. four c. six d. eight e. ten