Work done = 100J
Distance = 5 meters
Force = ?
Force = 100/5 = 20N
Therefore, the force needed is 20 Newtons
The second stage of prenatal development begins at about two weeks after conception. at this point, the growing bundle of cells is called an embryo.
The word phase means to change a part of a development
<u>Answer:</u>
<em>There are innermost serious membranes that cover the heart is Parietal Pericardium.</em>
<u>Explanation:</u>
Heart is <em>covered by pericardium</em> in two sides, inner and outer sides. The inner membrane is parietal pericardium and the outer one is visceral pericardium. Pericardium is made up of <em>fiber tissues</em> that strongly protect the heart from all around.
The<em> main function of pericardium</em> is to protect the heart from any injuries and prevent the infections. The serious pericardium helps in<em> lubricating the heart. </em>
<span>Mechanical waves....</span>
