How well do you know the USA?

Basic questions about the USA

1 Which state is Providence the capital of?
2 Which city did Starbucks and Boeing originate from?
3 Which state is referred to as the sunshine state?
4 Who was the discoveror of the Americas?
5 When was the Decleration of Independance signed?
6 Which US President was assassinated in 1963?
7 The "Will Rogers Highway" or "Mother Road of America" runs where?
8 Which state is home to the Bonneville Salt Flats?
9 In which state is the Grand Canyon National Park?