A charge of 2.00 ?C flows onto the plates of a capacitor when it is connected to a 12.0-V potential source. What is the minimum amount of work that must be done in charging this capacitor?
A) 6.00 µJ
B) 24.0 µJ
C) 12.0 µJ
D) 144 µJ
E) 576 µJ
C
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The ignition of helium in the core of a star changes the structure of the star. The star now makes energy in two locations by two different processes, _____
A) carbon fusion in the core and helium fusion in the surrounding shell B) helium fusion in the core and nitrogen fusion in the surrounding shell C) helium fusion in the core and hydrogen fusion in the surrounding shell D) nitrogen fusion in the core and helium fusion in the surrounding shell
The downslope movement of an unbroken block of rock or soil, which leaves a curved depression on the slope, is called a(n) ______________
Fill in the blank(s) with correct word
Substances that are _____ give up hydrogen ions when they dissolve in water
a. basic b. acidic c. neutral d. hydrophobic e. buffered
How does degeneracy pressure differ from thermal pressure?
A) Degeneracy pressure continues to be felt even if an object becomes cold, but thermal pressure is drastically reduced as an object gets cold. B) Degeneracy pressure cannot support an object against the crush of gravity, but thermal pressure can. C) Degeneracy pressure can arise in a plasma, but thermal pressure cannot. D) Degeneracy pressure affects stars, but thermal pressure does not.