Why is the heart divided into two halves by a thick musular wall?

Which of the following chambers of the heart has the thickest muscular wall ?

A thin rod of length l and mass M is bent at its midpoint into two halves so that the angle between them is 90^@ The moment of inertia of the bent rod about an axis passing through the bending point and perpendicular to the plane defined bt the two halves of the rod is

Why the heart wood is unable to conduct water ?

A flower which can be divided into equal vertical halves, by more than one plane of division is………………

Flowers which lack any plane of symmetry and cannot be divided into equal halves in any plane are seen in:

Days taken by the dividing embryo to implant in the nuterine wall is …

A person (40 kg) is managing to be at rest between two verticle walls by pressing one wall A by hi hands and feet and the other wall B by his back figure. Assume that the friction coefficient between his body and the walls is 0.8 and that limiting friction acts at all the contacts. a. show that the person pushes the two walls with equal force. b. find the normal force exerted by either wall on the person Take g=10 m/s^2 .

Show that the median of a triangle divides it into two triangles of equal areas.