6.A pressurized cylindrical tank, 5.0 m in diameter, contains water which emerges from the pipe at point with a velocity of 84 m/s. Point A ls 10m above point B
and point C is 3m above point B. The area of the pipe at point is o.08m^2 and the
pipe narrows to an area of 0.07m at point C Assume the water is an ideal fluid
in laminar flow. The density of water is 1000kg/m". What is the rate which the
water level in the tank is lowering?
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The answer is a.  i hope this

Answerthe energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.explanationwe define electric potential as the ratio electric potential energy to the charge,    then the following gives us the potential difference,      the formula  may be on your formula sheet.the change in electric potential energy would be the energy that would needed to move it from point a to point b. solving for that, we get    using q = 8.00  × 10⁻¹⁹ c and  δv = 2.00 v, we get    the energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.