Sputnik I Was Launched into Orbit Around Earth in 1957

question 10

Multiple Choice

Sputnik I was launched into orbit around Earth in 1957. It had a perigee (the closest approach to Earth, measured from Earth's center) of 6.81 × 10⁶ m and an apogee (the furthest point from Earth's center) of 7.53 × 10⁶ m. What was its speed when it was at its perigee? The mass of Earth is 5.97 × 10²⁴ kg and
G = 6.67 x 10^-11 N•m²/kg².

• A)7.18 × 10³ m/s
• B)7.84 × 10³ m/s
• C)8.23 × 10³ m/s
• D)11.0 × 10³ m/s
• E)13.4 × 10³ m/s

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Definitions:

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Units of heredity made up of DNA, responsible for the development of individual characteristics and influencing the growth and function of organisms.

Context

The circumstances, background, or settings that surround and give meaning to an event, idea, or statement.

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The actions or reactions of an individual or system in response to external or internal stimuli.

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A research design that measures relationships among participants’ measured characteristics, behaviors, and development.