What is the escape speed on a spherical asteroid whose radius is \( 700 \mathrm{~km} \) and whos...

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What is the escape speed on a spherical asteroid whose radius is \( 700 \mathrm{~km} \) and whose gravitational acceleration at the surface is \( 4.5 \mathrm{~m} / \mathrm{s}^{2} \) ?
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