Series/Parallel Circuits: What current flows from the battery in the circuit shown in the figure? The battery is ideal, and all the numbers are accurate to two significant figures.
A. 0.35 A
B. 2.0 A
C. 2.5 A
D. 3.0 A
Answer: B
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A sample of an ancient sedimentary rock contains slightly less of the isotope carbon-13 than found in inorganic material. One possible explanation for this is that
A) it was a meteorite that fell from the sky B) some kind of radioactive decay occurred in it in the past C) it used to be at the bottom of an ancient ocean D) some kind of biological activity occurred in it in the past
Sometime within the next million years or so, their planet is likely to be doomed because
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As you move farther away from a source emitting a pure tone, the ___________ of the sound you hear decreases
a. frequency b. period c. wavelength d. amplitude e. none of the above
If you think of a battery as an electric charge ‘pump,' the battery voltage is analogous to
a. rate of fluid flow. b. pressure. c. flow velocity. d. water. e. none of the above.