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In materials science, quenching is the rapid cooling of a workpiece to obtain certain material properties. A type of heat treating, quenching prevents undesired low-temperature processes, such as phase transformations, from occurring. It does this by reducing the window of time during which these undesired ... Even cooling such alloys slowly in air has most of the desired effects of ...


Uncontrolled decompression is an unplanned drop in the pressure of a sealed system, such as an aircraft cabin, and typically results from human error, material fatigue, engineering failure, or impact, causing a pressure vessel to vent into its lower-pressure surroundings or fail ... Such decompression may be classed as Explosive, Rapid, or Slow:.


e. latent heat released during the formation of hurricanes. ANSWER: b. 2. The most abundant gases in the earth's atmosphere by volume are: a. carbon ..... b. lower than at present ..... On a clear, calm, night, the ground and air above cool mainly by this process: ... b. the light-colored sand radiates heat very rapidly at night.


Nitrogen and oxygen, which make up most of the Earth's atmosphere, have no ... The average global temperature has increased ~0.6 °C during the past 120 years . ... climate projections, the Earth's temperature should also have risen rapidly. ... the Sun; the Southern Hemisphere cools as the tilt changes, and the cooling ...


May 18, 2014 ... At night, the ground cools more rapidly than the air above and a ... diffuse toward ice crystals in clouds (the ice crystals have a lower vapor pressure). .... wind pattern most often observed at a location during a given time period.


Rapidly vibrating atoms smash together, which generates heat. ... The bathtub has lower temperature but contains much more heat because it has many more vibrating ... Most of the energy that reaches the Earth's surface comes from the Sun. .... As the heated air rises it begins to cool, since it is further from the heat source.


If it decreases relatively rapidly (i.e. if the air aloft, several km above the surface) is .... frequent air pollution during summertime is the prevalence of a cool, shallow marine air ... Most of this energy comes from the sun in form of radiation. .... The emitted intensity of the earth is much lower that that of the sun, in fact the suns ...


Air surrounds the earth and extends out for about 1,000 miles, gradually fading into ... The atmosphere is divided into several layers with the Troposphere being the lower level. ... The most rapid changes in temperature also take place. .... At night, no appreciable radiation is received and the surface cools rapidly since the  ...


Most of the radiant energy is converted into atmospheric heat energy before it is radiated .... At the equator the pressure is lower and at the poles it is higher. ... This warm air rises and cools, and because cool air can contain less water vapor, ... In changing from a liquid to the gaseous state the more rapidly moving water ...


Jan 11, 2015 ... List the 4 most sbundant gasses in today's atmosphere. ... Briefly describe how the air temperature changes from the earth's surface to the lower ... During the day the transmissions go a shorter distance due to ... The boundary between warm and cool air appears as a dark line on ...... Rapidly expanding air ...