Compounds tend to be ______________ compounds if they are formed from two or more nonmetals
a. covalent
b. organic
c. polar
d. ionic
a
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Consider the segment of cylindrical metal wire shown below. Assume that the drift speed of electrons is everywhere the same in the segment. Note that area B is tilted so that its nose vector makes an angle of ? < 90° with the drift velocity direction but still spans the wire’s entire cross section. How do the current density fluxes through areas A and B compare?
A. The flux through A is greater than the flux through B.
B. The flux through B is greater than the flux through A.
C. The fluxes through A and B are the same.
The outermost planets in our Solar System are Jovian planets
a. True b. False Indicate whether the statement is true or false
Although it is almost the same size as Jupiter, Saturn's gravity is about 2.5 times less, because of Saturn's lower mass and density
Indicate whether the statement is true or false
A +2.0-nC point charge is placed at one corner of a square (1.5 m on a side), and a -3.0-nC charge is placed on a corner diagonally away from the first charge. What is the magnitude of the electric field at either of the two unoccupied corners?
a. 20 N/C b. 14 N/C c. 4.0 N/C d. 12 N/C e. 8.0 N/C