Earnings: Amgen, Inc., United States Steel Corporation, Western Digital, More (AMGN, X, WDC, More) January 27, 2015. After the bell on Tuesday, a number of big name, dividend paying companies announced their quarterly earnings. Below, we look at these earnings reports and break down the important points for investors.
As temperature increases, the density of liquids and gases decreases; as temperature decreases, the density increases. Density is the amount of mass per unit of volume.
This is because a higher-than-normal temperature (a warm, balmy day) tends to be accompanied by a higher-than-normal barometric pressure of the atmosphere. That is, high temperature tends to decrease air density, while high pressure tends to increase air density. The air density ratio column in Table 3.1-1, which is the ratio of standard air density at altitude to the standard air density at sea level, shows that the air density decreases rapidly as altitude increases.