1. The average temperature in this city during summer is around 30 degrees Celsius. (这个城市夏季的平均气温约为摄氏 30 度。) 2. The average life expectancy has increased significantly in the past century. (过去一个世纪,平均寿命显著增长。) 3. On average, people spend about 2 hours on socia...
A refrigerator extracts 15000 J of heat from the cold reservoir in 10 seconds. Determine the power at which heat is extracted by the refrigerator. 22. A cup of water requires 83720 J of heat to elevate its temperature by 20 degrees celsius in 167.44 seconds. Determine the pow...
1. The average temperature in this city during summer is around 30 degrees Celsius. (这个城市夏季的平均气温约为摄氏 30 度。) 2. The average life expectancy has increased significantly in the past century. (过去一个世纪,平均寿命显著增长。) 3. On average, people spend about 2 hours on socia...
1. The average temperature in this city during summer is around 30 degrees Celsius. (这个城市夏季的平均气温约为摄氏 30 度。) 2. The average life expectancy has increased significantly in the past century. (过去一个世纪,平均寿命显著增长。) 3. On average, people spend about 2 hours on socia...