# Answer to Question #67753 in Field Theory for Jacob Delgado

Question #67753

Take a rectangular stripe of paper about 2 × 12 cm. Put it right above your chin and blow the air horizontally over it. Assume the speed of moving air is v ≈ 2m/s.

(a) Find the pressure difference above and below the stripe in Pa.

(b) the same in atm

(c) estimate the lift force which acts on the stripe

(a) Find the pressure difference above and below the stripe in Pa.

(b) the same in atm

(c) estimate the lift force which acts on the stripe

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