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Gala2k [10]
3 years ago
5

In general, which type of compound tends to have the lowest melting point?

Physics
2 answers:
Liono4ka [1.6K]3 years ago
5 0

A. Molecular solids tend to have lower melting points than Ionic so it would be Ionic if it weren't for Molecular.

Rom4ik [11]3 years ago
3 0

Answer:

A. Molecular solids

Explanation:

Bonds between two or more molecules is the force of attraction between the molecules. If the force of attraction is strong between the molecules then the matter must be solid.

If the force of attraction is very weak then in that case the material is liquid and for more weak force we can say that the material is gas.

So here melting point depends on the force of attraction in which if the force is more then the melting point must be high. So here for lowest melting point we need to find a material in which the force of attraction is weak.

So out of all given option the weak attraction force is only in

A. Molecular solids

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Calculate the magnitude and direction of the electric field 2.0 m from a long wire that is charged uniformly at λ = 4.0 × 10-6 C
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Determine the CM of a rod assuming its linear mass density λ (its mass per unit length) varies linearly from λ = λ0 at the left
Dahasolnce [82]

Answer:

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Explanation:

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\lambda =\lambda_0+ \dfrac{2\lambda _o-\lambda _o}{L}x

\lambda =\lambda_0+ \dfrac{\lambda _o}{L}x

Lets take element mass at distance x

dm =λ dx

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So total moment of inertia

I=\int_{0}^{L}\lambda x^2dx

By putting the values

I=\int_{0}^{L}\lambda_ ox+ \dfrac{\lambda _o}{L}x^3 dx

By integrating above we can find that

I=\dfrac {7}{12}\lambda_ 0 L^3

Now to find location of center mass

x_c = \dfrac{\int xdm}{dm}

x_c = \dfrac{\int_{0}^{L} \lambda_ 0(1+\dfrac{x}{L})xdx}{\int_{0}^{L} \lambda_0(1+\dfrac{x}{L})}

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x_c=\dfrac{\dfrac{L^2}{2}+\dfrac{L^3}{3L}}{L+\dfrac{L^2}{2L}}

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So mass moment of inertia I=\dfrac {7}{12}\lambda_ 0 L^3 and location of center of mass  x_c= \dfrac{5}{9}L

8 0
3 years ago
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