The formulas for the three speeds mentioned here can be derived by mathematical techniques. The most probable speed is the square root of (2 R T / M), where R = gas constant, T = temperature, M = molecular mass. For the gas N 2, which temperature gives the highest most probable speed: 500 C, 600 K, or 700 F?
Idris Elba. An only child, Idris Elba was born and raised in Hackney, London, England. His father, Winston, is from Sierra Leone and worked at a Ford motor factory. His mother, Eve, is from Ghana and had a clerical duty. Idris attended school in Canning Town, where he first became involved in acting.
Although not known for his travels, Muhammad al-Idrisi was most important for the exploration of Asia for Europeans when he made the Tabula Rogeriana, a map of the whole known world, in 1154 for the Norman King Roger II of Sicily, based on his knowledge of the Arab trade routes.