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Name: Dan
Status: other
Age: 50s
Location: N/A
Country: N/A
Date: 2000-2001
Question:
What velocity is required for a space vehicle to excape the earth's gravity and what speed is required to keep it in orbit.

Also, what kind of fuel is primarily used for same.

Dan

Replies:
Orbital velocity is about 17,500 mph. Escape velocity is about 25,000 mph. Our present technology uses chemical engines (both liquid and solid) for space launches.

Larry Krengel


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