There are electrons in the filament of the AC lamp in your bedroom. When you turn on the lamp and it glows, the glowing comes from
A) different electrons; the ones that flow in the circuit to your lamp.
B) the same electrons.
C) the positive charges that flow in the filament.
B
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If we used a vertical scale identical to the horizontal scale, how many squares on the graph would accommodate the maximum relief along the profile?
A second example of a vertical profile is in Figure 23.6. Using the same procedure as you did on the previous assignment, construct a topographic profile. Label the South Fork of the Gualala River (see Figure 23.4, Step 3), the bench mark at 112 feet, and various road crossings on your profile. The coastline forms a contour line of equal elevation—sea level. Note the change in contour interval and scale from that of Figure 23.5. Use Figure 23.6 to answer further questions about preparing a topographic profile.
The Supreme Court of the United States has consistently affirmed the constitutionality of majority-minority Congressional districts
Indicate whether the statement is true or false.
The density of 4°C water will slightly decrease when it is
A. warmed. B. cooled. C. both of these D. none of the above
Which of the following contains a modern continental rift?
A) Eastern North America B) Eastern Africa C) Eastern Europe D) Eastern Pacific Ocean E) East Timor