The "Escape Velocity" from Earth (The Speed Required to Escape

question 115

Multiple Choice

The "escape velocity" from Earth (the speed required to escape Earth's gravity) is 2.5 * 10⁴ miles per hour. What is this speed in m/s (1 mile = 1609 m)

• A) 4.2 * 10^-3 m/s
• B) 6.9 m/s
• C) 4.2 * 10² m/s
• D) 1.1 * 10⁴ m/s
• E) 4.0 * 10⁷ m/s

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