Water is stored in an open stored in an open storage tank. the absolute pressure in the tank above the liquid is 1.0 atm. the water level is 8m above the base of the tank. what is the instantaneous velocity of a fluid jet when a 0.5 cm diameter orifice is open at point a. the opening is 0.8m above the base. consider v1=0 at the instant the opening is made (1)

Explanation:

given data:

water level at point A = 8 m

diameter of orifice = 0.5 cm

velocity at point A  =  0

h1 =0.8 m

h2 = 8 - h1 = 8 - 0.8 = 7.2 m

Applying Bernoulli  theorem between point A and B

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

    5.5 n======    assuming that      we have      m = 0.145 kg    a = 38 m/s²therefore    5.51 n, but two significant figures.final answer: 5.5 n