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Q. An electric dipole is formed from +- 3.0 nC point charges spaced 2.0 mm apart. The dipole is centered at the origin, oriented along the y-axis. What is the electric field strength at point (x,y) = (13 cm, 0 cm)?

Q. What is the ?nal equilibrium temperature when 5 g of milk at 28 ?C is added to 162 g of co?ee at 86?C? Assume the speci?c heats of milk and coffee are the same as that of water,and neglect the speci?c heat of the container.Answer in units of ?C.

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