Aflock of ducks is trying to migrate south for the winter, but they keep being blown off course by a wind blowing from the west at 7.0 m/s . a wise elder duck finally realizes that the solution is to fly at an angle to the wind.

Thank you for posting your question here at . I hope the answer will help you. Feel free to ask more questions.
The ducks had been heading due South, at 8 (m/s), but were hit by the side wind from the West at 4.5 (m/s). 

To counter this, they have to have a West-ward component of 4.5. But this means that, if their angle (west of south) is alpha, 
8*sin(alpha) = 4.5 
=> sin(alpha) = 4.5/8 = 0.5625 
=> alpha = Arcsin(0.5625) = 34.23 degrees (WoS)

Pe = 1/2k(x)^2  and .05n/m = .05x10^-9m = x 

Wouldnt it be millileter