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.
But young adults have also abused OTC medicines, particularly in combination with other medicines, alcohol, and illegal drugs, which increases the risks. The list that follows includes the top 10 medicines currently abused by teens and adults. 1  Dextromethorphan: This is the active ingredient in more than 100 OTC cough and cold medicines such as Robitussin and NyQuil. 2  One teen in every 10 has reported abuse of cough medicine to get high.