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manish00333

  • one year ago

(SIMPLE GRAVITY QUESTION!) A 250 gram apple falls to the ground. Using the equation for gravitational force, determine the mass of the Earth. (assume the distance between the apple and the center of the Earth is the Radius of the Earth: 6,400km)

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  1. manish00333
    • one year ago
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    i actually got 6.02*10^18 which seems more likely but is still not the mass of the earth..

  2. IrishBoy123
    • one year ago
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    show your workings, please.

  3. manish00333
    • one year ago
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    @irishboy123 here you go:

  4. Astrophysics
    • one year ago
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    Please put units in your work otherwise it's very confusing, also use meters for distance.

  5. Astrophysics
    • one year ago
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    |dw:1435181108646:dw| it's best if you do the algebra first. So please can you do that now?

  6. Astrophysics
    • one year ago
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    Also note, the mass of the apple will get cancelled out so you just need, |dw:1435181298393:dw|

  7. IrishBoy123
    • one year ago
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    manish i reckon astro has nailed this for you - already(!) cool question!

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