Terminal velocity varies as the square of the radius: spheres or raindrops of different size

1. A.
   $12\text{ cm s}^{-1}$
2. B.
   $9\text{ cm s}^{-1}$
3. C.
   $6\text{ cm s}^{-1}$
4. D.
   $3\text{ cm s}^{-1}$

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1. A.
   $V_0$
2. B.
   $4V_0$
3. C.
   $8V_0$
4. D.
   $64V_0$

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1. A.
   $\frac{V}{3}$
2. B.
   $\frac{V}{4}$
3. C.
   $\frac{V}{6}$
4. D.
   $\frac{V}{9}$

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1. A.
   $\frac{8}{27}$
2. B.
   $\frac{9}{4}$
3. C.
   $\frac{3}{2}$
4. D.
   $\frac{27}{8}$

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1. A.
   $16$
2. B.
   $8$
3. C.
   $4$
4. D.
   $2$

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1. A.
   $4 : 3$
2. B.
   $64 : 27$
3. C.
   $16 : 9$
4. D.
   $9 : 16$

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