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Thread: Physics Help

  1. #1
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    Physics Help

    Preliminary 2017: //English Standard//Maths Extension 1//Physics//Chemistry//Design & Technology//IDTVET//

    HSC 2018: //English Standard//Maths Extension 1//Maths Extension 2//Physics//Chemistry//

    ATAR Aim: 95+

  2. #2
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    Re: Physics Help

    You use Kepler's constant, the information about Uranus is unnecessary.

    R3/T2=GM/4pi2

    You are given the radius, time and you already know the Universal Gravitational constant (6.67x10-11), sub in these values and rearrange the equation to get the mass. I hope this helps

  3. #3
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    Re: Physics Help

    I did that previously and ended up with the mass of the sun, the mass in Kepler's law refers to the central mass. I'm just unsure of how to calculate the mass of Pluto.
    Preliminary 2017: //English Standard//Maths Extension 1//Physics//Chemistry//Design & Technology//IDTVET//

    HSC 2018: //English Standard//Maths Extension 1//Maths Extension 2//Physics//Chemistry//

    ATAR Aim: 95+

  4. #4
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    Re: Physics Help

    Sorry, can't help, spent good 10 minutes and can't wrap my head around this either.

    Btw, we have the EXACT same subjects, good luck.
    Andy005 likes this.

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