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1. |
What is the continuity equation for a moving shock wave? |
A. | ρ1W = ρ2up |
B. | ρ1W = ρ2(W – up) |
C. | ρ1(W + up) = ρ2up |
D. | ρ1W = ρ2(W + up) |
Answer» C. ρ1(W + up) = ρ2up | |