Answer Happy

Question for Topic 2: Why does your kettle boil Part 1) Let's consider a stool. The legs of the stool are metal, and the top is a rubber cushion. When we touch the stool on a cold day, the rubber cushion feels warm compared to the metal. The reason for that is: (No answer given) Part 2) You pour yourself a 223 mL glass of water. The initial temperature of the water is T; = 18.5°C. The specific heat capacity of water is cw = 4.20J/gºC and for steel is Cs = 0.420J/gºC. You drop reusable stainless steel "ice" cubes into the water and let the cubes come into equilibrium with the water. Once in equilibrium, you measure the temperature to be Tf = 17.3°C. Since you've done PHYS1110, you know you can calculate how much energy was extracted from the water. Assuming energy isn't lost to the surroundings, how much energy does the water lose? E= J Part 3) The cubes that you dropped into the water were originally at freezer temperature, -2.7°C. If each cube has a mass of 16.7 g, how many ice cubes did you drop in? Number of cubes = cubes