For a fixed mass flow rate of a given fluid flowing through a circular pipe, how does the specific frictional pressure loss (in j/kg) per unit pipe length vary with pipe diameter? derive the relationship between frictional loss per unit length and the pipe diameter for both the laminar region and the fully-turbulent region with a fixed ratio of roughncss (mm) to pipe diameter (mm). use your result to qualitatively describe the relationship for fully turbulent pipe flow with fixed roughness (mm).

n has four pairs of electrons in the valence shell, electrons repel one another ,n has 7 protons in its nucleus, and since n has 7 protons, it must fill the second shell, giving it 4 pairs of electrons. the electrons form 3 bonds and 1 lone pair of electrons. each pair of electrons repels the other pairs, so they are equally far apart.

so all of the above

they all get energy from eating other animals, dead animals to be more precise.

hienas tends to steal pray from other animals. crows and vultures tend to eat dead animals and leftovers.

hope it ,

bioteacher101