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• the ruling in brown v. board of education did not immediately end segregation in public schools because northern states refused to follow it. the supreme court did not offer a new policy. southern states closed all their public schools. the supreme court could not agree on a new policy.
  
• the de broglie relation λ=h/p can be rewritten in terms of the wave number k as p=kℏ . recall that wave number is defined by k=2π/λ . using the fact that λ=v/f , find the wave numbers k1 and k2 corresponding to frequencies f1 and f2 . express your answer as two expressions separated by a comma. use f1 , f2 , v , and π .
  
• what is the leading natural resource in nigeria? a. coal b. iron c. oil d. zinc
  
• a long-run equilibrium occurs when long-run aggregate supply and aggregate demand meet. what does having long-run equilibrium indicate about a society? the society’s supply and demand have stagnated. the society is using all of its resources efficiently. the society’s needs are being fully met. the society is not using all of its resources effectively.
  
• which are uses of convex mirrors? check all that apply. magnifying mirrors for putting on makeup side-view mirrors on vehicles hallway safety mirrors focusing automobile headlights lenses in sunglasses
  
• qué significa que el país sea una república democrática representativa y federal en donde existe la división de poderes los gobernantes durán un tiempo limitado en sus cargos y se tienen que coordinar las autoridades federales estatales y municipales
  
• during a total solar eclipse, when the sun's _______ is blocked by the moon, the sun's _______ can be seen as a white halo.
  
• give me liberty or give me death!
  
• how would you translate the following sentence? ¿estás segura? are you stinky? are you smart? are you sure? is she sure?
  
• in which situation would government regulation most likely be necessary? a factory requires employees to work in unsafe conditions. a restaurant requires employees to work overtime on weekends. a computer company requires employees to work long hours. a power plant requires employees to take safety training classes.