The density of the blade is constant throughout its length, and so a 10%-mass. fragment will have a cross-sectional area of 10% of the full blade. In practice, the. area of a 10%-mass fragment will vary depending upon its shape, and upon whether. it consists of the only the outer shell or the internal beams as well.
Marijuana use ranks second behind alcohol in regards to the most commonly abused drugs by teenagers. There has been an increase in marijuana use among teenagers due to the increasing societal attitudes towards tolerance and perceptions that marijuana is not a dangerous drug.
Still, to answer the question, statistics from 2009 (PDF, 362.76KB) show that the drug most often abused by teens in 8th, 10th, and 12th grades is alcohol, followed by marijuana. The third most abused drug varies by gradeâfor 8 th graders, itâs inhalants. For 10 th and 12 th graders, itâs Vicodin (a prescription medication for pain). Hereâs a little more info: