4. going back to the situation in question 1 (pipe narrows from an area of 2.0 cm2 to an area of 1.0 cm2 ; the speed of the water in the larger part of the pipe is 2.0 m/s. you already calculated the speed in the narrow part in question 1). the pipe is horizontal so the height of the water doesn’t change. suppose you measure the pressure in the larger part of the pipe to be 8,000 pa. what is the pressure in the narrow part

Explanation:

we know from continuity equation

A1 V1 = A2 V2

V2 = 4 m/s

we know, so we have

after solving we get

the one with the highest speed

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.