When aqueous solutions of Na2CO3 and BaCl2 are mixed, the products are NaCl and ______________
Fill in the blank(s) with correct word
BaCO3
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Which is smallest, an atom, a nucleus, a proton, or an electron?
a. atom b. electron c. nucleus d. proton
A circus diver drops from a high pole into water far below. When he is halfway down
A) his potential energy is halved. B) he has gained an amount of kinetic energy equal to half his initial potential energy. C) his kinetic energy and potential energy are equal. D) all of the above E) none of the above
An infinite plane of charge with 
is tilted at a 45° angle to the vertical direction as shown below. The potential difference, VA?VB, in volts, between points A and B, a 4.50 m distance apart, is
?
?
A. ?7.06. B. ?9.98. C. ?14.11. D. +7.06. E. +9.98.
A. The divergence is positive. B. The divergence is negative. C. The divergence is zero.