It's really complicated. total stopping distance is the sum of the perception-reaction distance and the braking distance. D_{total}=D_{p-r}+D_{braking}=v t_{p-r}+ \frac{v^2}{2 \mu g}. A common baseline value of t_{p-r}=1.5 s, \mu=0.7 is used in stopping distance charts.
Hematology is the study of blood in health and disease. It includes problems with the red blood cells, white blood cells, platelets, blood vessels, bone marrow, lymph nodes, spleen, and the proteins involved in bleeding and clotting (hemostasis and thrombosis).hen something is wrong with your blood, it can affect your total health. That is why it is important for you to know about some of the common blood disorders that may affect you.
What Hematologists Do. Although hematology is the study of human blood in both health and disease, hematologists usually focus on the disease-related aspects. Blood disorders and disease could include problems with red or white blood cells, the blood vessels, bone marrow, lymph nodes or spleen.edicine is a field with many specialties, one of which is hematology. Hematologists are specialists in diseases and other problems related to the blood. Some hematologists specialize in blood cancers and are called hematologist-oncologists.