lec 2

lec 2
7問 • 1年前
  • Nayan Kumar
  • 通報

    問題一覧

  • 1

    If distance between two object decreases by 50% then percentage change in gravitational force of object

    300%

  • 2

    If distance between two object increases by 300% then percentage change in force

    decreases by 93.75%

  • 3

    Two bodies of equal masses are some distance apart. If 20% of mass is transferred from the first body to the second body, then the gravitational force between them (a) Increases by 4% (b) Increases by 14% (c) Decreases by 4% (d) Decreases by 14%

    3

  • 4

    A mass M is broken into two parts of masses m₁ and m2. How are m₁ and m₂ related so that force of gravitational attraction between the two parts is maximum?

    M=2m

  • 5

    A mass M is split into two parts mo and M-mo. These two masses are then separated by a distance D. If the gravitational force between the parts is maximum, then the ratio m/M is (a) 0.2 (b) 0.4 (c) 0.5 (d) 0.6

    3

  • 6

    r⁴

  • 7

    Find distance from 25 kg so that force on mass M will be zero

    t

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    100問 • 1年前
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    Nayan Kumar · 75問 · 1年前

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    Nayan Kumar · 39問 · 1年前

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    Nayan Kumar · 41問 · 1年前

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    問題一覧

  • 1

    If distance between two object decreases by 50% then percentage change in gravitational force of object

    300%

  • 2

    If distance between two object increases by 300% then percentage change in force

    decreases by 93.75%

  • 3

    Two bodies of equal masses are some distance apart. If 20% of mass is transferred from the first body to the second body, then the gravitational force between them (a) Increases by 4% (b) Increases by 14% (c) Decreases by 4% (d) Decreases by 14%

    3

  • 4

    A mass M is broken into two parts of masses m₁ and m2. How are m₁ and m₂ related so that force of gravitational attraction between the two parts is maximum?

    M=2m

  • 5

    A mass M is split into two parts mo and M-mo. These two masses are then separated by a distance D. If the gravitational force between the parts is maximum, then the ratio m/M is (a) 0.2 (b) 0.4 (c) 0.5 (d) 0.6

    3

  • 6

    r⁴

  • 7

    Find distance from 25 kg so that force on mass M will be zero

    t