Compute all parts of given question:
Question: A long horizontal wire carries 23.0 A of current due north. The Earth's field 25.0 cm due west of the wire points north but downward, 44 degree below the horizontal, and has magnitude of 5.0 × 10-5.
Part A: What is the magnitude of the net magnetic field 25.0 cm due west of the wire?
Part B: What is the angle below the horizontal of the net magnetic field 25.0 cm due west of the wire?
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