Assume that all the circuit elements have the same resistance. (b) Which bulb is (or bulbs are) dimmest? (To indicate a pair of bulbs using the letters at the back of the book, point to two letters at the same time.)
A. Bulb A
B. Bulb B
C. Bulb C
D. All three bulbs are equally bright.
C. Bulb C
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Historically, which measurement may have been defined as the distance from the royal nose to the thumb of the royal outstretched arm?
a. 1 foot b. 1 yard c. 1 meter d. 1 kilometer
The Mississippi River delta has widely spaced distributary channels extending long distances into the Gulf of Mexico. This is an example of a(n) ________ delta.
a. estuarine b. bird's-foot c. alluvial d. fluvial e. arcuate
To have a negative ion, you must have:
A) taken away a proton from the nucleus. B) added a positron to the nucleus. C) added a positron to the outer electron shell. D) added an electron to the outer electron shell. E) None of these; only positive ions can exist in nature.
Which of the following bodies is comprised mostly of plasma?
A) Earth B) Moon C) Sun D) all of the above E) none of the above