Question #cc889

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Question #cc889

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Answer 1 · 2017-03-22T16:51:17

The correct answer is $D$ $D$ . Seee xplanation for details.

Explanation:

In the question we have the mass and the density given, and we must calculate the volume.

To do this we have to use the formula:

$d = \frac{m}{V}$ $d=m/V$

where $d$ $d$ - density, $m$ $m$ - mass and $V$ $V$ - volume

After rearranging the formula we get:

$V = \frac{m}{d}$ $V=m/d$

Before calculations we have to check the units:

The density is given in $\frac{g}{c m^{3}}$ $g/(cm^3)$ , while the mass is given in $k g$ $kg$ . Looking at the answers we can see that we have to express the mass in grams. To do this we have to multiply the mass in kilograms by $1, 000$ $1,000$ : $m = 18, 754, 000 g$ $m=18,754,000g$

Now we can divide the numbers to get the volume:

$V = \frac{1, 754, 000}{0.788} \approx 2.38 \times 10^{7}$ $V=(1,754,000)/0.788~~2.38xx10^7$

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Question #cc889

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Explanation:

$d = \frac{m}{V}$ $d=m/V$

$V = \frac{m}{d}$ $V=m/d$

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Question #cc889

1 Answer

Explanation:

d=mVd=m/V

V=mdV=m/d

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$d = \frac{m}{V}$ $d=m/V$

$V = \frac{m}{d}$ $V=m/d$