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Author Question: Find the area of the surface generated by rotating the astroid x = a cos3 t, y = a sin3 t about y = 0. (Read 36 times) |
Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.
Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.