To dive far below the surface of the water, a submarine must be able to withstand enormous pressures. At a depth of 351 m, what pressure does water exert on the submarine’s hull? Use g=9.81 m/s2.

P=3647934.3 Pa

Explanation:

We use the formula for pressure inside a fluid:

Where is the pressure at its surface (the atmospheric pressure in our case), its density (the density of seawater in our case), g the acceleration of gravity (which is given in our case, and known) and h the depth at which we want to know the pressure (which is given in our case). For our case then we have:

because growing process had stoped after 4-5 year

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.