QUESTION 1


According to Bernoulli´s principle, what happens when velocity of fluid flow increases?




Pressure remains the same.


Pressure decreases.


Pressure increases.

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QUESTION 2


How does a wing achieve lift?


by forcing air to move faster over the top of the wing


by moving air at the same rate on the top and bottom of the wing


by forcing air to move slower over the top of the wing

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QUESTION 3


What causes drag?


decrease in velocity


Bernoulli´s principle



lift


friction