If a circuit has two resistors in parallel both are 4, what is the total resistance of the circuit?

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Astate of matter all that has define volume and can flow is a(n)

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.