1. An aluminum wing on a passenger jet is 28m long when its temperature is23°C.At what temperature would the wing be2cm (0.02m)shorter?
2. A bottle containing 6 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?
3. A 0.08-kg lead bullet traveling 307 m/s strikes an armor plate and comes to a stop. If all of the bullet's energy is converted to heat that it alone absorbs, what is its temperature change?