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Home Q & A Board Science-Related Homework Help Physics
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Brelou Brelou
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7 years ago
Sputnik I was launched into orbit around Earth in 1957. It had a perigee (the distance from the point of closest approach to the center of Earth) of 6.61 × 106 m and an apogee (the distance from the furthest point in the orbit to the center of Earth) of 7.33 × 106 m. Its mass was 83.5 kg. What was the difference in kinetic energy as it moved from perigee to apogee? The mass of Earth is 5.97 × 1024 kg and G = 6.67 x 10-11 N•m2/kg2.
A) 8.27 × 107 J
B) 6.44 × 107 J
C) 1.93 × 108 J
D) 3.50 × 108 J
E) 4.94 × 108 J
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Physics

Physics


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Quantum physics thus reveals a basic oneness of the universe.
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longhairlonghair
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Brelou Author
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7 years ago
You make an excellent tutor!
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kevin12323h
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Helped a lot
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