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System of Parti...

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  • Question 1
    4 / -1

    A person standing on a rotating platform with his hands lowered outstretches his arms. The angular momentum of the person

  • Question 2
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    The mass of an electron is  9 x 10-31 kg. It revolves around the nucleus of an atom in a circular orbit of radius 4.5 Å, with a speed of  8 x 105m/s. The angular momentum of electron is

  • Question 3
    4 / -1

    The earth rotates about an axis passing through its north and south poles with a period of one day. If it is struck by meteorites, then

  • Question 4
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    Relation between torque and angular momentum is similar to the relation between

  • Question 5
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    The dimensions of angular momentum are

  • Question 6
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    An earth satellite is moving around the earth in a circular orbit. In such case, what is conserved?

  • Question 7
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    A uniform circular disc of radius 50 cm at rest is free to turn about an axis which is perpendicular to its plane and passes through its centre. It is subjected  to a torque which produces a constant angular acceleration of 2.0 rad/sec2. It's net acceleration in m/s2 at the end of 2.0 s is a approximately.

  • Question 8
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     kgm2s-1 is the unit of

  • Question 9
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    Angular momentum is equal to____.(All the symbols used have their usual meanings)

  • Question 10
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    In case of a projectile, the angular momentum is minimum

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