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

Physics & Space Science

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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

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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

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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.

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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

Physics & Space Science