An insoluble solid that is formed when two liquids (usually aqueous solutions) are mixed is called
a) an acid.
b) a precipitate.
c) a redox.
d) an enzyme.
b
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_________ are electromagnetic radiation with wavelengths typically from 0.1 nm to 1 nm.
Fill in the blank(s) with the appropriate word(s).
An 05 star has an H? line present in its spectra. What color is the line?
a. red
b. no color as the line is in the UV band
c. blue
d. no color as the line is in the infrared band
Determine the magnitude and sense (direction) of the current in the 500-? resistor when I = 30 mA.
A. 56 mA left to right B. 56 mA right to left C. 48 mA left to right D. 48 mA right to left E. 26 mA left to right
A 2000-kg sailboat experiences an eastward force of 3000 N by the ocean tide and a wind force against its sails of magnitude 6000 N directed toward the northwest (45° N of W). What is the magnitude and direction of the resultant acceleration?