Calculating Force of Friction. #1. BarCode. 1. The problem statement, all variables and given/known data. A car of weight 1500 N has its brakes locked. Calculate the force needed to begin to drag he car on dry asphalt. How will the force needd to slide it along the asphalt compare with the force needed to start sliding it? Why? (Static coefficient=1.2, Kinetic coefficient=0.8) Known: weight (1500 N, the mass in N on earth) , coefficients of static and kinetic friction 2. Relevant equations Ff = (coefficient of kinetic)(normal force) Fn = mg 3. The attempt at a solution (force needed to start it moving) Force of friction = 1.2 * 1500 N = 1800N (force needed to keep it moving) = Force of friction * coefficient Kinetic friction
A psychiatrist has an MD degree (Doctor of Medicine) or DO (Doctor of Osteopathy) and has chosen to specialize in the branch of medicine that focuses on mental health issues. A psychiatrist treats patients by talking with them as well as by prescribing medication (if needed). Psychologists have one of these degrees: PhD (Doctor of Philosophy), PsyD (Doctor of Psychology), or EdD (Doctor of Education). A psychologist treats patients by talking with them but does not prescribe medication.
Psychiatrists prescribe medicine, and may also use psychotherapy, although the vast majority do medical management and refer to a psychologist or other specialized therapist for weekly to bi-monthly psychotherapy.