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1. |
The partial differentiation of excess hydrostatic pressure overline{u} as a function of r and with respect to x is given by _______ |
A. | ( frac{ overline{u}}{ x}= frac{ overline{u}}{ r} cos - frac{1}{r} frac{ overline{u}}{ } sin ) |
B. | ( frac{ overline{u}}{ x}= frac{ overline{u}}{ r} cos - frac{1}{r} frac{ overline{u}}{ } cos ) |
C. | ( frac{ overline{u}}{ x}= frac{ overline{u}}{ r} sin - frac{1}{r} frac{ overline{u}}{ } sin ) |
D. | ( frac{ overline{u}}{ x}= frac{ overline{u}}{ r} sin - frac{1}{r} frac{ overline{u}}{ } cos ) |
Answer» B. ( frac{ overline{u}}{ x}= frac{ overline{u}}{ r} cos - frac{1}{r} frac{ overline{u}}{ } cos ) | |