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Ice melts at 0°C and dry ice melts at a lower temp. Explain the differences on the melting point based on their intermolecular bonding.? The population of a certain town is 27,000 and is doubling every 4 years. When will population reach 90,000? Please show steps!? If you kiss with a Kurd, do you get Kurdish dna? Derive an expression for curvature correction and combined curvature and refraction correction? How do I trigonometrically solve for tension on two cables, holding up a single 200 lb block at different angles?