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polet [3.4K]
3 years ago
13

A pure substance that is made of only one kind of atom is called _________.

Physics
2 answers:
grandymaker [24]3 years ago
4 0

the answer is element

Nina [5.8K]3 years ago
3 0
A pure substance that is made up of only one kind of atom is called an element
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The parallel axis theorem relates Icm, the moment of inertia of an object about an axis passing through its center of mass, to I
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Answer:

Part a)

I_{end} = \frac{mL^2}{3}

Part b)

I_{edge} = \frac{2ma^2}{3}

Explanation:

As we know that by parallel axis theorem we will have

I_p = I_{cm} + Md^2

Part a)

here we know that for a stick the moment of inertia for an axis passing through its COM is given as

I = \frac{mL^2}{12}

now if we need to find the inertia from its end then we will have

I_{end} = I_{cm} + Md^2

I_{end} = \frac{mL^2}{12} + m(\frac{L}{2})^2

I_{end} = \frac{mL^2}{3}

Part b)

here we know that for a cube the moment of inertia for an axis passing through its COM is given as

I = \frac{ma^2}{6}

now if we need to find the inertia about an axis passing through its edge

I_{edge} = I_{cm} + Md^2

I_{edge} = \frac{ma^2}{6} + m(\frac{a}{\sqrt2})^2

I_{edge} = \frac{2ma^2}{3}

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3 years ago
If a gas has a gage pressure of 156 kPa, it is absolute pressure is approximately
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In the given question, one important information for getting to the actual solution is not given and that is the atmospheric pressure. To find the approximate absolute pressure, it is needed to add the value of atmospheric pressure with the gage pressure.
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Then
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<u>Note that</u>:

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