You have a 30-ft tall cylindrical tank with a diameter of 15 ft, which has been filled to 20 ft with jet a (rho = 6.71 lbm/gal). (a) calculate the hydrostatic pressure at the bottom of the tank. give your answer in psig. (b) calculate the total force exerted on the vertical walls of the tank due to hydrostatic pressure. give your answer in lbf.

a chemical reaction

explanation:

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.

that tool would be a compass

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a