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Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

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.