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Compute all parts of given question:

Question: Mary needs to row her boat across a 190-m wide river that is flowing to the east at a speed of 1.5m/s. Mary can row with a speed of 2.0m/s.

Part A: If Mary points her boat due north, how far from her intended landing spot will she be when she reaches the opposite shore?

Part B: What is her speed with respect to the shore?

Please give me an explanation for above question.

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