In the region shown in the image, there is a uniform electric field of magnitude 56.9 N/C which points in the positive y‑direction. Points 2, 3, and 4 are all 0.623 m away from point 1, and the angle ?=46.4°. Calculate the following potential differences Vi−Vj, where i and j indicate the numbered points. V2−V1=? V3−V1=? V4−V1=? V2−V4=?

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