Recent content by Mareena

  1. M

    Undergrad Why is air escaping from a burst tire and cloud formation adiabatic processes?

    I know in this process a gas expands or is made to get compressed very rapidly as the flow of heat requires finite time .. but am getting a bit confused with these 2 examples ? on what basis have they been regarded adiabatic?
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    Undergrad Why is air escaping from a burst tire and cloud formation adiabatic processes?

    A process in which no heat enters or leaves the system ?
  3. M

    Undergrad Why is air escaping from a burst tire and cloud formation adiabatic processes?

    how is the rapid escape of air from a burst tyre and cloud formation in atmosphere an example of adiabatic process? please explain
  4. M

    Stone thrown upward from bridge reaches water in 3 seconds

    Homework Statement A body standing on a bridge throws a stone vertically upwards with a velocity of 20 m/s. it strikes the water below after 3 seconds, the height of the bridge over the water level in the river is : a. 45 m b. 10 m c. 5 m d. 15 m Homework Equations vf^2= 2aS +...
  5. M

    Maximum error in kinetic energy from mass and speed measurement errors

    The percentage errors in the measurement of mass and speed are 2 % and 3% respectively.how much wil be the maximum error in the estimate of kinetic energy obtained by measuring mass and speed? its ans is 8 % .. according to this equation K = mv^2/ 2 , so dK / K = dm/m + 2dv / v ( d means...
  6. M

    Why do displaced electrons remain stationary if electrons orbit the nucleus?

    I have a question relating this topic, please help me find it out.. In case an insulator charged by friction is brought near ta a conductor it gets the charges on conductor induced or polarized.. what if it is actually touched with a conductor, would the excess charges now flow in between them?