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.
A human body must have an average density Since a body remains on the surface of water this means that it&#39;s density is less than that of water.Source(s): human density: https://trimurl.im/b10/human-density.Danni Â· 2 months ago. Thumbs up.ow well depends on the amount of body fat; fat is less dense than muscle and bone and so fat people float better than athletic people. In fact, the classic (Archimedes) way of measuring density -- immersion in a tub and measuring overflow -- is used to measure % of body fat.