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Q. A 65kg ice skater coasts with no effort for 85m until she stops. If coefficient of kinetic friction between her skates and the ice is µk = 0.13, how fast was she moving at the start of her coast?

Q. An electric dipole is formed from +/-4.0 nC point charges spaced 3mm apart. The dipole is cantered at the origin, oriented along the y-axis. What is an electric field strength at point (x,y) = ( 6.0 cm, 0 cm)

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