6. rank the following in terms of increasing kinetic energy: a. a 1200 kg car going 15 m/s b. a 10,000 kg train car at rest c. a 15 kg meteor going at a speed of 1000 m/s d. a 100 kg person running at 5 m/s

Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.

The mini-refrigerator fire was most likely caused by what type of wiring?

Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?