1. An aluminum wing on a passenger jet is 32 m long when its temperature is 18°C. At what temperature would the wing be 8 cm (0.08 m) shorter? In Celsius
2. A bottle containing 7 kg of water at a temperature of 16°C is placed in a refrigerator where the temperature is kept at 5°C. How much heat is transferred from the water to cool it to 5°C? In Joules
3. One cubic meter of water (see Table 4.4 for the mass density of water) flowing over the Lower Falls in Yellowstone National Park drops 94 m. If all of the water's potential energy is converted to kinetic energy at the bottom of the falls and the kinetic energy goes to heat the water, what is the temperature increase of the water? In Celsius