Guys i need help with this ! Thank you

Brainliestttme : )why was the launch of sputnik in 1957 important? -most in the u.s. had not thought the soviets were capable of producing satellite technology.- it made clear that the u.s. space program was dominant.- most in the soviet union had not thought the u.s. was capable of launching manned aircraft. -it established the fact that a more dangerous hydrogen bomb could be created.

The slave dred scott sued for his freedom because he was born a free man. he had lived in a free state. slavery violated the 13th amendment he had been freed by pres. lincoln.

Why was hawaii so important to the united states & why did japan bomb pearl harbor?