Fifteenth Amendment ratified. The Fifteenth Amendment to the U.S. Constitution gave the vote to all male citizens regardless of color or previous condition of servitude. Joseph H. Rainey, first black member sworn in as member of U. S. House of Representatives. December 12, 1870.
The average density of the human body is 985 kg/m 3, and the typical density of seawater is about 1020 kg/m 3.a) Draw a free-body diagram of a human body floating in seawater and determine what percentage of the body's volume is submerged.b) The average density of the human body, after maximum inhalation of air, changes to 945 kg/m 3.) Draw a free-body diagram of a human body floating in seawater and determine what percentage of the body's volume is submerged. b) The average density of the human body, after maximum inhalation of air, changes to 945 kg/m 3.
The volume of a human brain, otherwise known as cranial capacity, varies depending on several factors, such as age, environment, and body size. The volume is usually measured in cubic centimeters (cm 3 or cc).Modern humans have cranial capacities from 950 cm 3 to 1800 cm 3, but the average volume of a modern human brain is 1300 cm 3 to 1500 cm 3.Viktoriya Shchupak -- 2001.heir brains were about the size of those of present-day gorillas, about 350 to 450 cubic centimeters in volume, as compared with an average volume of about 1450 cubic centimeters in modern humans..