For the united states, how could the successful launch of sputnik best be summarized?
a.
an event that sparked competition and encouraged americans to invest in science
b.
an event that created anger and made americans threaten the soviet union
c.
an event that caused regret and pushed americans to lose interest in innovation
d.
an event that led to despair and prepared americans to reduce defense spending

Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d