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Slav-nsk [51]
3 years ago
13

Forces of attraction between particles is the smallest in

Physics
1 answer:
olya-2409 [2.1K]3 years ago
4 0

Answer:

The forces of attraction are weak in gases.

Explanation:

Solid-state objects are presented as bodies in a definite form; their atoms are often intertwined into narrowly defined structures, which gives them the ability to withstand forces without apparent deformation. They are generally described as hard as well as resistant, and in them, the forces of attraction are greater than those of repulsion. In the crystalline solids, the presence of small intermolecular spaces gives way to the intervention of the bond forces, which place the cells in geometric forms.

Solid – In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other.   Their vibration is related to their kinetic energy.  In the solid the particles vibrate in place.

Liquid – In a liquid, particles will flow or glide over one another, but stay toward the bottom of the container. The attractive forces between particles are strong enough to hold a specific volume but not strong enough to keep the molecules sliding over each other.

Gas – In a gas, particles are in continual straight-line motion. The kinetic energy of the molecule is greater than the attractive force between them, thus they are much farther apart and move freely of each other.  In most cases, there are essentially no attractive forces between particles.  This means that a gas has nothing to hold a specific shape or volume.

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Which of the following is not a natural resource? a. time b. water c. land d. air Please select the best answer from the choices
AleksAgata [21]

Answer: Option (a) is the correct answer.

Explanation:

Resources which are created by human beings are known as man-made resources.

For example, glass, rayon, nylon etc are all man-made resources.

Whereas resources which are naturally created are known as natural resources.

For example, wind, air, water etc are all natural resources.

Thus, we can conclude that out of the given options time is not a natural resource.

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Thylakoids contain chlorophyl that absorb solar energy
steposvetlana [31]

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3 years ago
Jack is falling down the hill at a speed of 12 m/s. If Jack has a mass of 45 kg, what is his kinetic energy?
Sindrei [870]

Explanation:

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8 0
4 years ago
The 160-lblb crate is supported by cables ABAB, ACAC, and ADAD. Determine the tension in these wire
kakasveta [241]

Answer:

F_{AB} = 172.1356\\F_{AC} = 258.2033\\F_{AD} = 368.8004

Explanation:

Using the diagram (see attachment) we extract the following position vectors:

Vector (OA) = 6i + 0j + 0k \\Vector (OB) = 0i + 3j + 2k \\Vector (OC) = 0i - 2j + 3k

Next step is to find unit vectors u_{AB} ,u_{AC}, u_{AD}, u_{AE} as follows:

u_{AB} = \frac{vector(AB)}{magnitude(AB)} \\= \frac{OB - OA}{magnitude({vector(OB - OA))} }\\=\frac{-6i +3j+2k}{\sqrt{6^2 + 3^2+2^2} } \\\\=-0.857 i +0.429j+0.286k\\\\u_{AC} = \frac{vector(AC)}{magnitude(AC)} \\= \frac{OC - OA}{magnitude({vector(OC - OA))} }\\=\frac{-6i -2j-3k}{\sqrt{6^2 + 2^2+3^2} } \\\\=-0.857 i -0.286j+0.429k\\\\u_{AD} = +1i\\u_{AC} = -1k

Using the diagram we find the corresponding vectors Forces:

F_{AB} = F_{AB} i + F_{AB}j +F_{AB}k\\F_{AC} = F_{AC} i + F_{AC}j +F_{AC}k\\F_{AD} = F_{AD} i + F_{AD}j +F_{AD}k\\W = -160 k

Equation of Equilibrium:

Sum of forces = 0\\F_{AB}. u_{AB} + F_{AC}.u_{AC} + F_{AD}.u_{AD} + W = 0\\(-0.857F_{AB}i + 0.429F_{AB}j +0.286F_{AB}k) + (-0.857F_{AC}i - 0.286F_{AC}j +0.429F_{AC}k) + (+1F_{AD} i)  + (-160k) = 0

Comparing i , j and k components as follows:

-0.857F_{AB} -0.857F_{AC}  +1F_{AD}  = 0\\+ 0.429F_{AB} - 0.286F_{AC} = 0\\+0.286F_{AB} +0.429F_{AC}  =  160

Solving Above equation simultaneously we get:

F_{AB} = 172.1356\\F_{AC} = 258.2033\\F_{AD} = 368.8004

3 0
4 years ago
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