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mr_godi [17]
3 years ago
15

Our molecular model of matter describes a fluid as consisting of lots of little particles (atoms or molecules)

Physics
1 answer:
sergij07 [2.7K]3 years ago
5 0

Answer:

a)  μ = [kg / m s]

b)  D = m²/s

Explanation:

Viscosity is equivalent to a friction force that opposes the movement of fluids, it is defined by the relation

       

       

      Shear stress = μ speed gradient

       Fr/A = μ  v₀ / h

Where Fr is the shear force, A the area, h the height and v₀ the velocity of the fluid layer

     μ = [kg / m s]

The diffusion coefficient characterizes the ability of a material to move in a given solvent, depending on the size of the solute, the viscosity of the solvent, temperature

           

         J = - D dΘ / dx

J is the broadcast glare

            D = [m² / s]

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Assume a satellite shines an unpolarized light on a telescope. The intensity of the light as it reaches the telescope is 1.1*10-
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Answer:

4.125\times 10^{-11}\ W/m^2

Explanation:

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Intensity of light is given by

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4 years ago
What will be the final temperature if a 4.00 g silver ring at 41.0◦C if it gives off 18.0 J of heat to the surroundings? The spe
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Answer:

Final temperature, T_f=21.85^{\circ}

Explanation:

Given that,

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The expression for the specific heat is given by :

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Explanation:

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