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2 years ago

Are rocks made of matter?

Physics

2 answers:

ololo11 [35]2 years ago

7 0

Answer:

Yes, the rocks are made of matter

Explanation:

Let's remember the definition of matter.

Matter is all that has mass and occupies a place in space. Therefore, if we measure the mass of each rock we will know its mass, the other fact is that rocks like any particular body are occupying a place in an empty space.

The opposite of this is antimatter and can its extent be given by the quantum mechanics.

natita [175]2 years ago

3 0

Answer:

A rock is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition and the way in which it is formed. Rocks are usually grouped into three main groups: igneous rocks, metamorphic rocks and sedimentary rocks.

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andreyandreev [35.5K]

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2 years ago

A flat square plate of side 20cm moves over other similar plate with a thin layer of 0.4cm of a liquid between them with force 1

antiseptic1488 [7]

Answer:

$\mu=0.98\ Pa.s$

Explanation:

Given:

dimension of square plate, $l=0.2\ m$

thickness of fluid layer, $dy=0.004\ m$

force on the fluid due to plate, $F=1\ kgw=1\times 9.8=9.8\ N$

velocity of plate, $du=1\ m.s^{-1}$

Using Newton's law of viscosity:

$\tau=\mu.\frac{du}{dy}$ ..........................................(1)

where:

$\tau=$ shear force on the surface on the fluid

$\mu=$ coefficient of (dynamic) viscosity

Now, shear force:

$\tau=\frac{shear\ force}{area}$

$\tau=\frac{9.8}{0.2\times0.2} \ Pa$

Putting respective values in eq.(1)

$\frac{9.8}{0.2\times0.2}=\mu\times\frac{1}{0.004}$

$\mu=0.98\ Pa.s$

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3 years ago

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Kazeer [188]

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2 years ago

How to get a + b on a graph

Nataly [62]

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3 years ago

A certain string can withstand a maximum tension of 39. N without breaking. A child ties a 0.43 kg stone to one end and, holding

frez [133]

Answer:

Bottom of the circle.

Explanation:

At the top of the circle the tension and the weight contribute on being the centripetal force, at the middle of the circle only the tension contributes on being the centripetal force (the weight being perpendicular to it), while at the bottom of the circle the tension contributes on being the centripetal force (as always) but the weight against to it, so here is where the tension must be greater to allow the same centripetal force as the other cases, thus here is where the string will break.

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3 years ago

Are rocks made of matter?​

Are rocks made of matter?