A1: In practice, the USB specification limits the length of a cable between full speed devices to 5 meters (a little under 16 feet 5 inches). For a low speed device the limit is 3 meters (9 feet 10 inches). Q2: Why can't I use a cable longer than 3 or 5m?
Clouds form when moist, warm rising air cools and expands in the atmosphere. The water vapor in the air condenses to form tiny water droplets which are the basis of clouds.
The cloudâs essential component, water, can be found in all three states; in addition to droplets of liquid water, clouds contain water in its gaseous form, called water vapor, and in cold weather, they can become frozen into solids. [2] How Do Clouds Form? Clouds are a combination of water droplets and condensation nuclei. Clouds are formed when evaporation pulls water into the air creating the gaseous form of water called water vapor. When the air becomes saturated, water vapor condenses into liquid water droplets. However, it takes more than gaseous water vapor and liquid water droplets to form a cloud. These water droplets require condensation nuclei to condense upon such as dust, pollen, or smoke.