Two points, a and b, are located in the x-y plane, with coor…
Two points, a and b, are located in the x-y plane, with coordinates given in meters (m), as shown in the figure. A uniform electric field of magnitude 5000 V/m is directed along the +x axis. A charged particle with charge Q = +[q] × 10-4 C is moved from point a to point b by an external force. The particle starts and ends at rest. How much work does the external force do on the particle (in J)? Note: The result may be positive or negative. [Hint: external work = change in electric potential energy]
Read DetailsThe fossilized remains of two different species are found an…
The fossilized remains of two different species are found and scientists are interested in determining the evolutionary relationship of the two species. Which of the following would NOT be useful in determining the relatedness?
Read DetailsAbout 12,000 years ago, a mass extinction event occurred and…
About 12,000 years ago, a mass extinction event occurred and 75% of the world’s large mammal species were eliminated. While a small number of cheetahs managed to survive and restore the world’s population of cheetahs, this event caused an extreme reduction of the cheetah’s genetic diversity. Based on the principles of natural selection, which of the following is a consequence of their reduced genetic diversity?
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