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.
Alcohol-related car crashes are a leading cause of death for teenagers and young adults. Alcohol use is involved in many drownings, suicides, homicides, and injuries. Alcohol is the drug of choice among teens. Beer and wine are not safer than hard liquor. It is illegal in most states to provide alcohol to minors who are not members of the family. Using alcohol and tobacco at a young age â especially before high school â increases the risk for using other drugs later, such as marijuana and cocaine. Many teens abuse alcohol.