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11th Class Physics Mechanical Properties of Fluids / तरलों के यांत्रिक गुण Question Bank Mechanical Properties of Fluids Conceptual Problems

  • question_answer
    Why does an object entering the earth's atmosphere at high velocity catch fire?

    Answer:

                    When an object enters the earth's atmosphere at high velocity, its motion is strongly opposed by the viscous drag of air. As a result, the kinetic energy the object gets converted into heat energy. The heat produced may be so large that the object catches fire.


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