On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
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The horizontal fraction bar was introduced by the Arabs.
A typical fuel-pressure regulator that has a spring that exerts 46 pounds of force against the ...
Pressure gradient force
finding resultant for the following force combinations
finding the resultant force
How do resultant force work among different angles?