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A dolphin wants to swim directly back to its home bay, which is 0.760 km due west. It can swim at a speed of 4.23 m/s relative to the water, but a uniform water current flows with speed 2.92 m/s in the southeast direction. What direction should the dolphin head? How long does it take the dolphin to swim the 0.760-km distance home? thanks in advance

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