The sharing of two electrons by unlike atoms generally forms a(n) ______________ bond
a. ionic
b. metallic
c. nonpolar
d. polar covalent
d
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Dimensional Analysis: The distance d through which a beam of length L is deflected when it is subjected to a fixed load may be described by the relationship d = RL2. What are the SI units of the constant R?
A. m3 B. m2 C. m D. m-1 E. R is dimensionless
Star A is located at the top left of the H-R diagram and has the same luminosity as Star B which is located at the top right of the H-R diagram. How must these stars differ?
A. Star A is hotter and smaller than Star B. B. Star A is cooler and bigger than Star B. C. Star A is hotter and bigger than Star B. D. Star A is cooler and smaller than Star B.
You walk 53 m to the north, then you turn 60° to your right and walk another 45m Determine the direction of your displacement vector. Express your answer as an angle relative to east
A) 57° N of E B) 50° N of E C) 69° N of E D) 63° N of E
A huge explosion is heard 20 miles away. How long does it take the sound to travel that far? (20 miles = 32,000 meters)