Physics
Fluid-Mechanics
Easy

Question

Figure shows an ideal fluid flowing through a uniform cross-sectional tube in the vertical tube offers no resistance to fluid with liquid velocities  v subscript A space text and  end text v subscript B  and pressure  P subscript A space text and  end text P subscript B . Knowing that tube flow then which of the following is true.

  1. P subscript A less than P subscript B
  2. P subscript B less than P subscript A
  3. P subscript A equals P subscript B
  4. None

The correct answer is: P subscript A less than P subscript B


    table attributes columnalign left columnspacing 1em rowspacing 4 pt end attributes row cell v subscript A equals v subscript B end cell row cell fraction numerator v subscript A superscript 2 over denominator 2 end fraction plus g h plus p subscript A over rho equals fraction numerator v subscript B superscript 2 over denominator 2 end fraction plus 0 plus p subscript B over rho not stretchy rightwards double arrow P subscript A less than P subscript B end cell end table

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