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kap26 [50]
3 years ago
15

Dos cargas de 1 pC estan a 1mm, la fuerza de interaccion entre dichas cargas es?​

Physics
1 answer:
Naddik [55]3 years ago
6 0

Answer:

La fuerza de interacción entre dichas partículas es 8.988\times 10^{-9}\,N.

Explanation:

Asumamos que las dos cargas son puntuales, puesto que la fuerza de interacción es netamente electrostática, es determinada por la Ley de Coulomb:

F = \frac{k\cdot q_{1}\cdot q_{2}}{r^{2}} (1)

Donde:

k - Constante electrostática, medida en newton-metros cuadrados por Coulomb cuadrado.

q_{1}, q_{2} - Carga eléctrica, medida en Coulomb.

r - Distancia entre las partículas, medida en metros.

Si sabemos que k = 8.988\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}}, q_{1} = q_{2} = 1\times 10^{-12}\,C y r = 1\times 10^{-3}\,m, entonces la fuerza de interacción entre ambas partículas es:

F = \frac{\left(8.988\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}} \right)\cdot (1\times 10^{-12}\,C)^{2}}{(1\times 10^{-3}\,m)^{2}}

F = 8.988\times 10^{-9}\,N

La fuerza de interacción entre dichas partículas es 8.988\times 10^{-9}\,N.

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4 years ago
A rigid, nonconducting tank with a volume of 4 m3 is divided into two unequal parts by a thin membrane. One side of the membrane
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The final temperature of the system will be equal to the initial temperature, and which is 373K. The work done by the system is 409.8R Joules.

To find the answer, we need to know about the thermodynamic processes.

<h3>How to find the final temperature of the gas?</h3>
  • Any processes which produce change in the thermodynamic coordinates of a system is called thermodynamic processes.
  • In the question, it is given that, the tank is rigid and non-conducting, thus, dQ=0.
  • The membrane is raptured without applying any external force, thus, dW=0.
  • We have the first law of thermodynamic expression as,

                                dU=dQ-dW

  • Here it is zero.

                                  dU=0,

  • As we know that,

                             dU=C_pdT=0\\\\thus,  dT=0\\\\or , T=constant\\\\i.e, T_1=T_2

  • Thus, the final temperature of the system will be equal to the initial temperature,

                          T_1=T_2=100^0C=373K

<h3>How much work is done?</h3>
  • We found that the process is isothermal,
  • Thus, the work done will be,

                               W=RT*ln(\frac{V_2}{V_1} )=373R*ln(\frac{4}{\frac{4}{3} })\\ \\W=409.8R J

Where, R is the universal gas constant.

<h3>What is a reversible process?</h3>
  • Any process which can be made to proceed in the reverse direction is called reversible process.
  • During which, the system passes through exactly the same states as in the direct process.

Thus, we can conclude that, the final temperature of the system will be equal to the initial temperature, and which is 373K. The work done by the system is 409.8R Joules.

Learn more about thermodynamic processes here:

brainly.com/question/28067625

#SPJ1

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