Is SA node activated in the latent pacemaker of the heart ?

Amanometer is used to measure the air pressure in a tank. the fluid used has a specific gravity of 1.25, and the differential height between the two arms of the manometer is 34 in. if the local atmospheric pressure is 12.7 psia, determine the absolute pressure in the tank for the cases of the

Which two particles are found in the center of an atom

To a of 4 x hz is 1. 0. mm nm nm