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Author Question: A 5.0-kg mass sits on the floor of an elevator that has a downward acceleration of 1.0 m/s2. On top ... (Read 3503 times) |
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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
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Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.