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.
most teens die by car accidents, others die by other accidents. Compare the leading causes of death for teens with those of all ages. sedentary lifestyle, alcohol and drug abuse, sexual activity, STD's, behaviors that cause injuries, tobacco use, and poor eating habits. State the 6 risk behaviors that lead to health problems in teens.