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Sagot :
Answer:
- Density = 0.174 grams/ cm³
Explanation:
Given:
- The volume of a certain wooden block is 63 cm². The mass is 11 g.
To Find:
- Density
SolutioN:
We know that,
- p = M/V
here,
- p is density,
- m is mass,
- v is volume
Substituting the required values:
Density = 11g /63 cm³
Density = 0.174 grams/ cm³
Hence,
- Required density = 0.174 g/ cm³
Given:
- m= 11 g
- V= [tex]\bold{63 \: {cm}^{3}}[/tex]
- d= ?
Note that:
- m: Mass
- V: Volume
- d: Density
To find:
- The density
Solution:
- Dencity is mass per unit volume of a substance.
[tex]\large\boxed{\bold{Formula: d=\frac{m}{V}}}[/tex]
Let's solve!
In this question all the values are given so we'll simply have to substitute and solve.
So, we'll have to divide mass by volume.
Substitute the values according to the formula.
[tex]d= \frac{11}{63}[/tex]
Calculator value:
[tex]\bold{d= 0.174603174 \: g/ {cm}^{3}}[/tex]
Now, we can round off to 3 significant figures.
The value in ten thousandths place is greater than 5 so we'll have to round up by adding 1 to the thousandths place.
Final answer:
[tex]\large\boxed{\bold{d= 0.175 \: g/ {cm}^{3}}}[/tex]
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