The repeating pattern of a minerals particles in a solid is called

Physics

1 answer:

Klio2033 [76]3 years ago

5 0

Answer:

Crystal structure

Explanation:

The repeated pattern of similar particles in a material is called crystal. Crystal structure is the largest constituent unit of a solid matter.

The fundamental identity of a crystal structure is a unit cell that is formed by the arrangement of atoms or ions in a particular manner. A crystal is defined as a regular, long-ranged repeated arrangement of unit cells.

Crystal have a sharp melting and boiling point and they give a sharp edge on being cut with a knife.

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What is a linear motion

nirvana33 [79]

Linear motion (also called rectilinear motion) is a motion along a straight line, and can therefore be described mathematically using only one spatial dimension.

4 0

3 years ago

Estimate the theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation of an el

Nutka1998 [239]

Answer:

The theoretical fracture strength of a brittle material is 26465.29 MPa.

Explanation:

Given that,

Length = 0.54 mm

Radius curvature $R=3.4\times10^{-3}\ mm$

Stress = 1050 MPa

We need to calculate the theoretical fracture strength of a brittle material

Using formula of strength

$\sigma_{m}=2\sigma_{0}(\dfrac{l}{\rho_{t}})^{\frac{1}{2}}$

Where, l = length of the crack

$\rho_{t}$ = tip radius of curvature

Put the value into the formula

$\sigma_{m}=2\times1050\times(\dfrac{0.54}{3.4\times10^{-3}})^{\frac{1}{2}}$

$\sigma_{m}=26465.29\ MPa$

Hence, The theoretical fracture strength of a brittle material is 26465.29 MPa.

4 0

3 years ago

If I start with an 30 gram sample of Plutonium-244, how many grams would be left of Plutonium-244 after 1 half life

andriy [413]

Answer:

15 g

Explanation:

Given,

Plutonium-244 = 30 g

We have to find the gram of Plutonium-244 left after 1 half-life.

We know that the half-life of a radioactive isotope is constant. The half-life of a Radioactive isotope does not depend on the initial amount of isotope.

Now,

After 1 half-life

Plutonium-244 left = $\dfrac{30}{2}$