______________ are substances that cannot be decomposed by chemical processes
Fill in the blank(s) with correct word
Elements
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Capacitance: What charge accumulates on the plates of a 2.0-?F air-filled capacitor when it is charged until the potential difference across its plates is 100 V?
A. 50 ?C B. 100 ?C C. 150 ?C D. 200 ?C
A thin metal sheet in the xy plane carries current in the ?y direction. What is the direction of the magnetic field everywhere in the region above the sheet? 
in this case
A. points in the +x direction. B. points in the ?x direction. C. points in the +y direction. D. points in the ?y direction. E. points in the +z direction. F. points in the ?z direction. T. is zero.
What is the difference between heat conduction in series and in parallel between two materials?
What will be an ideal response?
The half-life of 20F is 11 s. What fraction of a sample of 20F will remain after 99 s have elapsed?
a. 1/10 b. 1/9 c. 1/400 d. 1/512 e. None of these