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Home Q & A Board Science-Related Homework Help Physics Astronomy
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hermiz hermiz
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6 years ago
Who started launching liquid-filled rockets in the United States in 1926?
A) Robert Goddard
B) Konstantin Tsiolkovsky
C) Hermann Oberth
D) Wernher von Braun
Textbook 
Life in the Universe

Life in the Universe


Edition: 4th
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Life in the Universe, 4/E (Bennett, Shostak)
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19Clyde19Clyde
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6 years ago
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hermiz Author
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6 years ago
Smart ... Thanks!
kamikazekota
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Yesterday
Helped a lot
smdavis
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2 hours ago
This helped my grade so much Perfect
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