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gizmo_the_mogwai [7]
4 years ago
7

Which of the following statements are true? A solid can diffuse into a liquid, but a solid cannot diffuse into another solid. A

solid can diffuse into both a liquid and another solid. A liquid can diffuse into another liquid. A gas can diffuse into another gas.
Physics
2 answers:
Papessa [141]4 years ago
5 0

A solid can diffuse into a liquid, but a solid cannot diffuse into another solid.

A solid can diffuse into both a liquid and another solid.

skad [1K]4 years ago
3 0

Explanation:

The statements which are true are as follows.

  • A solid can diffuse into both a liquid and another solid.
  • A liquid can diffuse into another liquid.
  • A gas can diffuse into another gas.

When we heat a solid it starts to melt as a result it diffuses into liquid. Whereas when we write with a chalk on a blackboard then the solid particles of chalk disperse on the solid surface of blackboard.

Therefore, a solid can diffuse into solid as well but the rate of diffusion is slow.

When we mix two liquids they tend to mix with each other. As a result, they diffuse into each other.

Similarly, a gas can diffuse into another gas as there is weak force of attraction between gas molecules and high kinetic energy. As a result, rate of diffusion is fast in gases.

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What is the mathematical relationship among voltage current and resistance​
loris [4]

Answer:

The relationship between voltage, current, and resistance is described by Ohm's law. This equation, i = v/r, tells us that the current, i, flowing through a circuit is directly proportional to the voltage, v, and inversely proportional to the resistance, r.

5 0
3 years ago
Mohammad has been saving 8 each week. Today he spent 142 of the savings, and he now has 50 left. For how many weeks has he been
poizon [28]

Answer:

24 weeks

Explanation:

142+50=192

192/8=24

3 0
3 years ago
Mars has two moons, Phobos and Deimos. Phobos orbits Mars at a distance of 9380 km from Mars's center, while Deimos orbits at 23
Sloan [31]

Answer:

The ratio is   \frac{T_1}{T_2}  = 3.965

Explanation:

From the question we are told that

   The  radius of Phobos orbit is  R_2 =  9380 km

    The radius  of Deimos orbit is  R_1  =  23500 \  km

Generally from Kepler's third law

    T^2 =  \frac{ 4 *  \pi^2 *  R^3}{G * M  }

Here M is the mass of Mars which is constant

        G is the gravitational  constant

So we see that \frac{ 4 *  \pi^2  }{G * M  } =  constant

   

    T^2 = R^3   *  constant      

=>  [\frac{T_1}{T_2} ]^2 =  [\frac{R_1}{R_2} ]^3

Here T_1 is the period of Deimos

and  T_1 is the period of  Phobos

So

      [\frac{T_1}{T_2} ] =  [\frac{R_1}{R_2} ]^{\frac{3}{2}}

=>    \frac{T_1}{T_2}  =  [\frac{23500 }{9380} ]^{\frac{3}{2}}]

=>    \frac{T_1}{T_2}  = 3.965

   

8 0
4 years ago
The statement that "the lowest energy configuration for an atom is theone having the maximum number of unpaired electrons allowe
Mila [183]

Answer:

"The lowest energy configuration for an atom is the one having the maximum number of unpaired electrons allowed by thePauli principle in a particular set of degenerate orbitals" is known as Hund's rule.

Explanation:

Pauli's Exclusion principle states that "two or more electrons can not have the same values of the set of all quantum numbers in an atom or a molecule".

So, the given statement <em>is not</em> Pauli's Exclusion principle.

Hund's rule states that the lowest energy configuration of an atom is that one in which the maximum number of parallel spins of the electrons are present.

The given statement is "The lowest energy configuration for an atom is the one having the maximum number of unpaired electrons allowed by the Pauli principle in a particular set of degenerate orbitals", which is same as the Hund's rule.

Thus, the given statement is Hund' rule.

Heisenberg's uncertainty principle states that the momentum and position of an object can not be measured exactly at the same time.

So, the given statement <em>is not</em> Heisenberg's uncertainty principle.

Aufbau principle tells about the filling of the electrons in subshells of an atom. Therefore, the given statement <em>is not </em>Aufbau principle.

3 0
3 years ago
Why did the scientific community initially reject Wegener's theory of continental drift?
zavuch27 [327]

Answer:

A. Wegener could not explain what made the continents move.

Explanation:

3 0
3 years ago
Read 2 more answers
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