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Author Question: What is the frequency of a helium-neon laser light with a wavelength of 632.8 nm? The speed of light ... (Read 55 times) |
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A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.
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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.