Hot air. The particles in the air move at a faster rate because they have more energy than cold air. When you feel something that is hot, what you are really feeling is the transfer of energy from that object to you. Same is true with the opposite. When you feel something cold you really feel the transfer of energy from your hand to that object. Reason: heat and energy are the same thing. The more energy, they more heat. The less energy, the less heat.
It's not moving at all, unless moved. However, the viscosity should increase when cooling down, same as with every Newtonian fluid.
Sage.
alright so this answer is correct except water and air is always moving- it has particles that are moving. cold air/water has faster moving particles then warm because warm air/water's particles are more tightly packed.
your welcome! Justin Bieber rocks!
CORRIGENDUM TO THE ABOVE:
Right. The particles are always moving, and they are moving faster when the air is warmer, or vice versa. What I meant is that due to the viscosity it takes more effort to move a certain amount of air within a cold medium, which also could be interpreted as 'slow'. The Brownian motion and Fluid mechanics...
warm air cools quicker
Cold air
cold
cold air
Air.You can always look up this answer on Bing or google!XD
Heat travels faster in water because the molecules are more tightly packed than the molecules in air, allowing more contact with ice and greater rate of heat transfer.
Not exactly, but to some extents. The difference between cold and hot is that cold lacks heat which makes atomic particles move faster and increase the radius of the electrons orbiting around the nucleus of the atom. While the solid part of the atom which is nucleus stays the same in size when is looses heat energy, it may decrease the orbit of the electrons.
an ice cube melts faster in water.it depends on the temperature of the air or water, if the water is warmer than the room air temperature, it will melt faster in the water.
yes heat is considered air, its the same just warmer and moves faster, the molecules are jumping around making it hot and moving faster were cold its on slow motion
In heat because the moisture in the air will make the bread mold
Water causes a rate of heat exchange approximately 25 times greater than air at the same temperature.Source: USAF Publications.
yes heat is considered air, its the same just warmer and moves faster, the molecules are jumping around making it hot and moving faster were cold its on slow motion
Because water conducts heat better than air. And even if the water is cool to touch, it's still warmer than the frozen food.
Whenever you are exposed to sunlight, the portion that is absorbed becomes heat. However, under most circumstances your body is also losing heat to the surround air, as it is usually cooler than human body temperature. The lower the air temperature, the faster you lose heat to it. If the air is warm enough, then the air will cool you at a slower rate than the sun warms you. On a cold day, the air cools you faster.
that all depends on the heat and cool air applied
Sound travels faster in steel than in air, regardless of temperature.
Cold air is compact air Hot air is less dense than cold air Ergo, hot air rises ; cold air sinks
There can be numerous reasons why it may be more difficult to breathe in the summer, some are, seasonal allergies, ozone, poor air quality, humidity, pollen, open windows leaving in car exhaust fumes and other air pollutents. Cheyzer
Frequencies of sound should travel faster in cold air because it is more dense than warm air. Sound propagates much faster through water than air for the same reason.
The air heats faster than the water because water has a higher heat capacity. As a result water takes four times more heat energy as compared to air.