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Author Question: You have two tuning forks that have a beat frequency of 2 Hz with respect to each other. One of them ... (Read 28 times) |
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.