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Solid State Physics

Solid State Physics is the branch of physics that deals with the physical properties of solid materials, especially the electromagnetic, thermodynamic, and structural properties of crystalline solids.

813 Questions

Crystalline and Amorphous Solids?

are two solids that are mostly the same but crystaline is in a pattern that repeats its self were as amorphous does not so they are both solids for ex. if i said the pattern abcabcabc....(infinite) the pattern would just repeat itself over and over but, amorphous would be abc but wuoldnt repeat itself.

What is the relative density of sand?

The density of sandstone is very variable as it is a natural earth material. As such, a range of densities are quoted in the literature and testing should be done on a specific sample to get an exact result.

Range of intact densities for sandstone:A

1770 - 2580 kg/m3

In imperial units:

110.5 lbs/ft3 to 161.1 lbs/ft3

Please see the related questions.

Source:

A Bell, F. G. (2007). Basic Environmental and Engineering Geology. Dunbeath, Whittles Publishing Limited.

Which particle is most involved with quantum theory?

The electron is the particle most involved with quantum theory. Its behavior and properties are governed by quantum mechanics, which describes the behavior of very small particles like electrons.

Copper 2 oxide formula?

The chemical formula for copper (II) oxide is CuO. In this compound, copper is in the +2 oxidation state and oxygen is in the -2 oxidation state.

What is the speed of sound at 12000 meters above sea level?

The speed of sound at 12000 meters above sea level is approximately 295 meters per second. Sound travels faster in colder temperatures and lower pressures, which are characteristics of higher altitudes.

What does The International Committee on Weights and Measures designates the speed of light as?

They don't designate the speed of light, but they do define the meter as

1/299,792,458 of the distance that light travels in one second in vacuum.

How do you make a model?

To make a model, first define the purpose and scope of the model. Then gather relevant data or information, choose an appropriate modeling technique, build the model using software or tools, validate the model with real-world data, and interpret the results to draw meaningful insights or predictions. Finally, document the model creation process and share the findings with stakeholders.

What type of bonds cause water to expand when it freezes?

Hydrogen bonds cause water to expand when it freezes. As water cools and freezes, the hydrogen bonds between water molecules form a crystalline structure with a more open arrangement than in its liquid state, causing it to expand and become less dense.

Does flame cutting use a neutral flame or slightly oxidizing flame?

Assuming that you are using the Oxygen-Acetylene cutting process; both, depending at what stage/phase of the cutting process you are in. What we encounter is a gas flow differential problem. With the cutting torch flame properly adjusted (the acetylene valve opened to the point where the un-mixed acetylene flame is burning without producing any smoke but still in contact with the cutting tip of the torch, the oxygen valve is slowly opened until you have adjusted the flame to a neutral quality or setting. Press the cutting oxygen lever; typically the flame will become slightly carburizing ("feathers" will appear at the ends of the pre-heat flames) this phenomonom occurs because of the drop in line pressure due to the high flow of oxygen through the cutting tube or orifice. With the oxygen lever remaining depressed, readjust the flame to a neutral setting. This will cause the flame to become slightly oxidizing when the cutting lever is released; since an oxidizing flame burns slightly hotter than a neutral flame the pre-heat of the metal that is being cut is faster. When the metal is at the proper pre-heat or kindling temperature (1600 F for pure iron - various steel alloys will be slightly different; beginning to turn bright red is a good indicator) depress the cutting oxygen lever, the flame will revert to "neutral" and the cut can then begin. Weld. Prof.

What temperature does steel expand?

0.00000645in/in/deg F is the coefficient of expansion for steel. so if you had a 12" plate, that was heated up 30°f you would get "0.00000645 * 12 * 30 = 0.002322" (12" + 0.002322") would be the new length at the increased temperature.

What particle of an atom has the smallest mass?

Both the Photon and the Gluon have zero mass.

Theoretically, the photon has zero rest mass (related to the fact that the electromagnetic force has unlimited range).

The current experimental upper limit is 10−18 eV/c2, or about 2×10-54 kg. For comparison, that means the photon is at least 5×1023 times lighter than the electron.

See the related links section for more information.

Lowest melting point?

W on the periodic table. the element with the highest melting/boiling point is tungsten.

In an experiment to determine whether the popping of popcorn is affected by the temperature at which it is stored counting the popped kernals is an example of what?

Counting the popped kernels in an experiment to determine if the popping of popcorn is affected by storage temperature is an example of quantitative data collection. By quantifying the number of popped kernels, researchers can analyze the results statistically to draw conclusions about the relationship between storage temperature and popping rate.

What are some examples of living matter?

A person, donkey plants, trees etc. are examples of living matter because they have life. If you talk about these matter you will have to mention oxygen and carbon dioxide.

Why does matter expand when heat has been absorbed?

Heat energy causes all matter to expand, a reason for this strange occurrence is that when a particular substance receives heat whether it be through conduction, convection or radiation the atoms inside the substance become more energised therefor needing more space to move, they push the outside boundaries making the substance expand. If the substance receives an exceeding amount of heat energy it will change states of matter.

I hope this valubale information comes of use.

What is the penetrating ability of different types of ionizing radiation through different thicknesses of materials?

it is gamma radiation
alpha and gamma are two
Size and charge mostly.

An alpha particle is basically the size of four protons and has 2 units of positive charge, so it doesn't get very far. A beta particle is just an electron, which has 1/2000 the mass of one proton, and one unit of negative charge, so it interacts less and gets a little further. A gamma ray has no mass and no charge and must resort to electromagnetic field effects to happen to it in order for it to interact. Therefore it can travel pretty far compared to the other two.

What is CdI2 name?

cadmium diiodide or cadmium (II) iodide

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Right Answer: Cadmium iodide

What are five physical changes that you can observe in your home?

Put liquid in the freezer to see it turn to a solid.

Ripping paper

Glass breaking

Melting butter

Vapor condensing on the mirror when taking a hot shower.

Basketball-Flat basketball

What are the physical properties of neoprene?

-Stretchable -Buoyant -able to trap water in-between layers

-waterproof

-chemical resistant (acids, oxidation, and oil)

-abrasion resistant

-tear and impact resistant

-flame resistant

not all are physical

What is the logic behind -273 Celsius 0kelvin?

-273 Celsius is the temperature at which all molecular motion stops, known as absolute zero. This is equivalent to 0 Kelvin, the lowest possible temperature in the Kelvin scale where particles have minimal energy and stop moving. Both scales converge at this point, representing the absence of thermal energy.

What are the 5 types of gases in air and its explanation?

The five main gases in air are nitrogen (78%), oxygen (21%), argon (0.93%), carbon dioxide (0.04%), and trace gases (such as neon, helium, methane, krypton, and hydrogen). Nitrogen provides inertness, oxygen sustains life through respiration, argon helps stabilize temperature and pressure, carbon dioxide supports plant photosynthesis, and trace gases have various roles in atmospheric chemistry.

If an object falling freely downward was somehow equipped with a speedometer on a planet where the acceleration due to gravity is 20 meters per secondits speed reading would increase each second by?

20 meters per second. This is because the acceleration due to gravity is equal to 20 meters per second per second, meaning the object's speed increases by 20 meters per second for each second of free fall.

Why wouldn't it be sensible to put an ice cube in a vacuum flask?

Putting an ice cube in a vacuum flask may not be sensible because the vacuum flask is designed to keep contents at a certain temperature by reducing heat transfer, so the ice cube may not melt quickly or release its cooling effect effectively inside the flask. The vacuum insulated walls of the flask work to prevent heat exchange with the surroundings, so the ice cube may not provide the desired cooling effect when placed inside.

Is Kevlar crystalline polycrystalline or amorphous?

Kevlar is a crystalline polymer, meaning its molecular structure is highly ordered and aligned. This gives Kevlar its exceptional strength and toughness, making it a widely used material in applications requiring high tensile strength.