Social Studies, 24.04.2020 19:16 kyle65
Each Voyager spacecraft carries a "postcard" designed to be understandable to any aliens that might someday encounter it. On the "postcard," scientists pinpointed the location of Earth by triangulating it between pulsars. Why did the scientists choose pulsars rather than some other type of star?
A) Pulsars are easy to identify by their almost perfectly steady periods of pulsation. B) Pulsars are very bright and therefore easy to find. C) Several pulsars are located within a dozen light-years of our solar system, making them useful for finding our solar system. D) We're pretty sure that aliens will have only radio telescopes and not optical telescopes, so they'll have a better chance of seeing pulsars than ordinary stars.
Answers: 2
Social Studies, 23.06.2019 15:30
If smyrna’s citizens were unhappy with this type of government, what other form of government are they most likely to adopt?
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Social Studies, 23.06.2019 16:40
Which of the following are ways that a citizen can address issues in the nation? learn how government works first. give money to special interest groups. volunteer to special interest groups. study the record of representatives and vote in elections. employ executive restraint in the office of the u.s. president.
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Social Studies, 23.06.2019 17:00
Which scenario validates bandura's bobo doll experiment? a. a child learning math from a teacher b. a child playing with blocks c. a child getting on a school bus d. a child smiling at others because his parents smile at others
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Social Studies, 23.06.2019 18:30
Why do the presidential candidates spend more time in states with large population
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Each Voyager spacecraft carries a "postcard" designed to be understandable to any aliens that might...
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