One american inventor held over 1000 patents and invented the phonograph, the lightbulb, the motion pictures. who was this famous american inventor?

Even before world war ii had ended, it was apparent that the allies would not remain friends in the post-war era. explain what is meant by the term cold war. then describe how the conflict between the superpowers manifested itself in the two following regions: europe and asia.

Which of these belongs to the united states after the spanish american war ?

31/3: which equation has the solutions x =?