Aaron want to build a tree hose with a zip line, a bridge, and rope swing. what is the infinitive in this sentence

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 energy released by a nuclear fusion reaction is produced when

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?