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Korvikt [17]
4 years ago
7

If the mass of a material is 46 grams and the volume of the material is 14 cm^3, what would the density of the material be?

Physics
1 answer:
umka21 [38]4 years ago
3 0

<u>Answer</u>

3.2857 g/cm³


<u>Explanation</u>

Density of a material is the mass of a unit volume of that material. It's SI unit is Kg/m³ but its has other units like g/cm³.

Density  = mass/volume

             = 46/14

             = 3.2857 g/cm³

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If you measured all the energy related to motion and all the stored energy in the particles of a substance, which would you be m
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Which of the following are true? Select all that apply. The net electric field at any location inside a block of copper is zero
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Answer:

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Explanation:

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3 years ago
What magnification will be produced by a lens of power –4.00 D (such as might be used to correct myopia) if an object is held 43
kiruha [24]

Answer:

The magnification is m  = 0.3674

Explanation:

From the question we are told that

  The  power of the lens is  P = -4.00 D(dioptre)

Generally  1 dioptre = 1 \ meter

  The object distance is u =  -43 \ cm the negative sign is because the distance is measured in the opposite direction of incident light (i.e away )

 Generally the focal length is mathematically represented as

          f = \frac{1}{P}  

   =>f = \frac{1}{4.00 }  

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converting to  cm  

 =>   f = 0.25 \ m = 0.25 * 100 = 25 \ cm

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=>  \frac{1}{25} +\frac{1}{v} -\frac{1}{-43}

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=>    m  = \frac{- 15.8}{-43}

=>    m  = 0.3674

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