when a warm and cold air come in as a contact it is like cold air is heavier than warm air so it sinks forcing lighter warm air to rise
It gets colder. And the energy increases so the particles move further apart.
When two fronts collide that have about the same temperature, wind might develop. When two fronts collide that have different temperatures, it can lead to a rain storm and sometimes tornadoes.
A warm humidifier will warm the air and make sure it is moist. A cool humidifier just pumps through cool air that has been enriched with moisture from the internal water store.
Actually, cool air tends to be more dense and flow under warm air
The air inside expands.
When a cool air mass meets and replaces a warm air mass, it results in a cold front. The cool air pushes under the warm air, forcing the warm air to rise. This can lead to the formation of clouds, precipitation, and a drop in temperature as the warm air is displaced by the cooler air mass.
Condensation
nothing
Warm air rises, and cool air sinks.
The cool air will sink and the warm air will rise.
When fronts meet from the opposite and collide, it is called an occluded front. A cold occluded front is cold air shoving under cool air at the Earth's surface thus the name 'cold occlusion'. The cold warm air boundary aloft is often west of the surface front. A warm occlusion is when cool air rises over cold air at the surface thus the name 'warm occlusion'. The warm-cold air boundary aloft is often east of the surface front. By Lisa Gardiner
Usually rain showers or thunderstorms result.
It gets colder. And the energy increases so the particles move further apart.
Cool air that is drawn into a hair dryer passes over superheated electric coils. Naturally, warm air is expelled from the other side.
Because warm air is less dense then cool air.
When a warm air mass moves over a cool air mass, the warm air mass will rise since it is less dense than the cool air mass. As the warm air rises, it cools and condenses, leading to the formation of clouds and potentially precipitation. This process can result in the development of unstable weather conditions.
When a cool air mass invades a warm air mass, it creates a boundary called a cold front. The denser cool air wedges under the warm air, forcing it to rise rapidly. This can result in the formation of thunderstorms, heavy rain, and strong winds along the front as the warm air is displaced.