Owarm up some milk for a baby, a mother pours milk into a thin-walled glass whose diameter is 6 cm. the height of the milk in the glass is 7 cm. she then places the glass into a large pan filled with hot water at 60°c. the milk is stirred constantly, so that its temperature is uniform at all times. if the heat transfer coefficient between the water and the glass is 120 w/m2·°c, determine how long it will take for the milk to warm up from 3°c to 38°c. take the properties of the milk to be the same as those of water.