Friction is also a force that, when unbalanced, can change the velocity of an object. What You Will Learn â¢ The magnitude of the force of friction can vary. â¢ Kinetic friction is a force that, when unbalanced, can change the velocity of a moving object. â¢ Static friction balances an applied force and can prevent motion.
It belongs to the group of compounds. known as methylxanthines which include. theobromine (cocoa) and theophylline (tea). Because of its excellent solubility and slow rate. of degradation, caffeine can persist in aquatic. environments (Seiler et al., 2005) and has the. potential to biomagnify through the food chain. Thus, even a small amount of dissolved caffeine. in aquatic environment can concentrate over. time.
Effects of Caffeine. A study in a 2007 issue of Nigerian Journal of Physiological Sciences reports that caffeine may suppress liver scarring in patients with chronic liver disease. The buildup of scar tissue blocks blood flow to the liver, impairing the organâs ability to function and heal itself. Additionally, a 19-year-long study of just under 10,000 people showed that drinking a moderate amount of caffeine-containing beverages each day significantly reduces your risk of developing chronic liver disease, as noted in a 2005 issue of Gastroenterology.