Which of the following best describes the magnetic field lines around an isolated, permanent bar magnet? a. the field lines go from the magnet's south pole into its north pole. b. the field points out along radial lines from the bar magnet, extending straight out to infinity. c. the field lines go from the magnet's north pole into its south pole. d. the field points straight into the bar magnet along radial lines that extend to infinity.

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..

explanation:

v=uf/(u-f)

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