Find the flow rate of a fluid of viscosity 1.5 X 10" N-s/m² flowing through a pipe radius 50 cm and length 100m at a pressure differential of 2 x 10 N/m?
A. 0.131 X 105 m/s B. 1.310 x 105 m/s C. 13.100 m/s D. 131.0 X 105 m/s
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  concave means having an outline or surface that curves inward like the interior of a circle or sphere. so the mirror curves inward.

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.

Answerinternal combustion engine fuel;