What is the result of adding 23.4 to 91.237 and then subtracting 23.4?
A) 91.237
B) 91.2
C) 91.3
D) 91.0
E) 91.
B
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An efficient step-up transformer boosts
A) energy. B) power. C) voltage. D) all of the above E) none of the above
Two identical balls have the same amount of charge, but the charge on ball A is positive and the charge on ball B is negative. The balls are placed on a smooth, level, frictionless table whose top is an insulator. Which of the following is true?
a. They will move together with constant acceleration. b. Since the force on A is equal but opposite to the force on B, they will not move. c. Since the force on both balls is negative, they will move in the negative direction. d. None of the above is correct.
The highest-strength titanium alloys are the STA _________alloys
Fill in the blank(s) with the appropriate word(s).
In which area of the galaxy would you find stars with fairly circular orbits about the galactic center?
a. central bulge b. halo c. corona d. disk e. galactic center