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3 years ago

Explain why stones are strong in compression but weak in tension

Physics

2 answers:

mafiozo [28]3 years ago

8 0

Answer:

Gigantic towers, monuments and tall structures are always supported by a very thick layer of concrete that’s blended into their foundation. The purpose of this is quite straightforward: nothing provides greater support to a super heavy (and stationary) structure than a layer of concrete. There may be other things that, in theory, could provide a stronger foundation, but they wouldn’t be nearly as cost effective as concrete.

kifflom [539]3 years ago

6 0

Answer:

Because it has essentially zero strength in tension, it is almost always used as reinforced concrete, a composite material. It is a mixture of sand, aggregate, cement and water.

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Answer:

Vdc=10V

Explanation:

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3 years ago

The _____ numbers equals the _____ of ______ electrons

suter [353]

The atomic number equals the number of protons and electrons (in a neutral atom)

Explanation:

An atom is composed of three types of particles:

Protons: they are found in the nucleus of the atom. They are positively charged ( $q=+1.6\cdot 10^{-19}C$ ) and have a mass of approximately $m=1.67\cdot 10^{-27}kg$
Neutrons: they are also found in the nucleus. They have no electric charge and have a mass slightly larger than that of protons
Electrons: they orbit around the nucleus. They have negative electric charge ( $q=-1.6\cdot 10^{-19}C$ ) and are much lighter than protons, having a mass of $m=9.11\cdot 10^{-31} kg$ .

An atom is also identified by two numbers:

Atomic number (Z): it is equal to the number of protons in the nucleus
Mass number (A): it is equal to the number of protons+neutrons in the nucleus

For a neutral atom, the net electric charge is zero: this means that the number of protons equals the number of electrons. But since the number of protons corresponds to the atomic number Z, this means that the atomic number is also equal to the number of electrons, for a neutral atom.

Learn more about atoms:

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4 years ago

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Answer:

0.0s

Explanation:

I got it right in acellus

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The effort is between the fulcrum and the load.
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3 years ago

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3 years ago

Explain why stones are strong in compression but weak in tension ​

Explain why stones are strong in compression but weak in tension