Question: Consider a two - dimensional flow which varies in time and is defined by the velocity field, u = 1 and v = 2 yt

Consider a two-dimensional flow which varies in time and is defined by the velocity field, u =1 and v =2yt.
At time t =0, the density everywhere is =0. Determine how the density changes with time, given the situation does represent a physical, compressible flow field.

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