Determine the specific volume for r-410a at these states:
a. −15◦c, 400 kpa
b. 20◦c, 1500 kpa
c. 20◦c, quality 25%

In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic

Me with this and you will be marked brainliest

Which describes increasing the efficiency of energy resource