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Q. explain why a dielectric increases the maximum operating voltage of a capacitator even though the physical size of the capacitator doesn't change.

Q. what is the final temperature when .032 kg of milk at 11 degrees celius is added to .16 kg of coffee at 91 degree celius? assume the specific heat capacities of the two liquids are the same as water, and desregard any energy transfer to the liquids surroundings.

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