A box contains two lenses made of the same glass material. Lens A is a bi-convex lens has front and back radii of curvature of |RA| = 30.0 cm, and labeled with a focal length of fA = 25.0 cm. The second lens is a planoconvex lens with one flat surface (R = [infinity] ) and the other surface having a radius of curvature that matches the other lens ( |RB| = 30.0 cm ). What is the focal length of len

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

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