The numbers in front of the formulas in a chemical
equation are referred to as
a) subscripts.
b) superscripts.
c) coefficients.
d) common denominators.
c
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A vector of magnitude 3 CANNOT be added to a vector of magnitude 4 so that the magnitude of the resultant is:
a. 7 b. 3 c. 5 d. 1 e. Zero
An electric toaster operating on 120 volts draws a current of 6 amperes. The resistance of the toaster is __________
Fill in the blank(s) with correct word
The three point charges +4.0 ?C, -5.0 ?C, and -9.0 ?C are placed on the x-axis at the points x = 0 cm, x = 40 cm,
and x = 120 cm, respectively. What is the x component of the net electrostatic force exerted on the -9.0 ?C charge by the other two charges? (k = 1/4??0 = 9.0 × 109 N ? m2/C2 ) A) -0.55 N B) 0.55 N C) 0.64 N D) 0.41 N E) -0.41 N
What is the direction of the force that the interaction between the particle and atom exerts on the atom?
A. A B. B C. C D. D E. Zero F. Other G. AA H. BB I. CC J. DD