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Author Question: A 2.5-kg box, sliding on a rough horizontal surface, has a speed of 1.2 m/s when it makes contact ... (Read 123 times) |
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.