What kind of weather would you associate with a high-pressure system? how does density, humidity, and air motion compare to that of a low-pressure system?

Low pressure systems typically arrive with storms and clouds. Air motion is usually upwards, as heated are is less dense and more buoyant than cooler air. A high pressure system is typically cooler than its counter-part, and skies are usually clear. Low pressure systems carry more water vapor due to rising hot air cooling and condensing.

explanation:

v=uf/(u-f)

= 5.-10/(5+10) convex lens has negative focal length