The line that seperates day and night is

9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

How can waves travel through ground?