In vacuum, the components of an EM wave are 
and 
0. What is the amplitude of the magnetic field for this wave?
a. 
b. 
c. 
d. 
e. 
b.
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Iron is passivated by the addition of _________in stainless steel.
Fill in the blank(s) with the appropriate word(s).
Capacitors in Combination: Three identical capacitors are connected in parallel to a potential source (battery). If a charge of Q flows into this combination, how much charge does each capacitor carry?
A. 3Q B. Q C. Q/3 D. Q/9
When a container of water is placed on a laboratory scale, the scale reads 120 g. Now a 20-g piece of copper (of density 8.9 g/cm3 ) is suspended from a thread and lowered into the water, not touching the bottom of the container
What will the scale now read? The density of water is 1.0 g/cm3. A) 120 g B) 122 g C) 138 g D) 140 g
Spherical Mirrors: If you stand in front of a convex mirror, at the same distance from it as its radius of curvature,
A. you won't see your image because there is none. B. you won't see your image because it is focused at infinity. C. you will see your image and you will appear smaller than you. D. you will see your image and you will appear larger than you. E. you will see your image and it will be the same size as you except upside down.