Porque Johanes Keppler decidio experimentar con los poliedros perfectos de los pitagoricos para explicar el movimiento de los planeta?

Which of the following is an example of units for speed

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

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.