Two trucks are traveling in the same direction, one going twice as fast as the other. at the end of 6 hours they are 204 miles apart. how fast is each travelling?

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.

Aphysical change is a change in the size, shape,, or stafe of matter true or false

The current in a hair dryer measures 11 amps. the resistance of the hair dryer is 12 ohms. what is the voltage?unit: