The radius of the aorta is about 1 cm and the blood flowing through it has a speed of about 30 cm/s. calculate the average speed of the blood in the capillaries given the total cross section of all the capillaries is about 2000 cm2.

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper.