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sherlockholmes

  • 11 months ago

A block of metal has a width of 3.2cm, a length of 17.1cm, and a height of 4.2cm. Its mass is 1.3kg. Calculate the density.

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  1. kym02
    • 11 months ago
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    First you find the volume which is length x width x height so therefore, 3.2cm x 17.1cm x 4.2cm gives? you do the math.

  2. sherlockholmes
    • 11 months ago
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    Yeah, I got that far. For the volume I got 229.8 cm3

  3. kym02
    • 11 months ago
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    ok good the formula for density is \[P =\frac{ m }{ v }\] where p is the density, m is the mass and v is the volume so you should apply your values and thats it!

  4. sherlockholmes
    • 11 months ago
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    But do I have to put Kg into g?

  5. kym02
    • 11 months ago
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    yes It is wise to convert the kg to g so when you get your answer the SI unit will be g/cm^3

  6. kym02
    • 11 months ago
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    Also some people convert the cm to m to obtain \[kgm ^{-3}\]. Either way is fine!

  7. sherlockholmes
    • 11 months ago
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    Thanks so much~!

  8. kym02
    • 11 months ago
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    you're welcome!

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