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.
Degrade means to put downââa degrading comment is one that makes the subject feel bad, a degraded field is one whose soil has been worn out. If you move from an A average to a B, you've been degraded. When you whistle at a passing woman, you're being disrespectfulââyour behavior is degrading to women. In science, degrade means to break down. Old paper or photographs can degrade when left in the lightââtheir material breaks down so that they crumble at a touch. Definitions of degrade.