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VashaNatasha [74]
3 years ago
6

The density of glycerin is 1.26 g/cm3. Which substance will sink in glycerin?

Physics
2 answers:
adell [148]3 years ago
8 0

Answer:aluminum (2.70 g/cm3)

Explanation:

Mademuasel [1]3 years ago
7 0
The answer to your question is aluminum.
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As a child walks, for a brief moment his entire weight is placed on one heel, which can be approximated as a small circle. Calcu
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The correct answer is option b, 63.6 kPa

Given,

The diameter of the heel, d=7 cm=0.07 m

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The pressure is given by the ratio of the force to the area through which the force is applied.

The force applied on the floor by the child is equal to its weight.

Thus the pressure applied on the floor by the child is given by,

\begin{gathered} P=\frac{F}{A} \\ =\frac{mg}{\pi(\frac{d}{2})^2} \end{gathered}

Where A is the area of the cross-section of the heel.

On substituting the known values,

\begin{gathered} P=\frac{25\times9.8}{\pi(\frac{0.07}{2})^2} \\ =63.6\times10^3\text{ Pa} \\ =63.6\text{ kPa} \end{gathered}

Thus the pressure applied on the floor by the heel is 63.6 kPa

4 0
10 months ago
5/6 - 1/3 sorry for add part i was meant to do minus but tell me what it is?​
bulgar [2K]

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\frac{1}{2}

Explanation:

\frac{5}{6} -\frac{1}{3} = \frac{15}{18} -\frac{6}{18}=\frac{9}{18} =\frac{1}{2}

5 0
2 years ago
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