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  1. 2h = g*t^2 g = 2h/t^2 = 10.7/2.55^2 = 1.646 m/sec^2 = M*G/r^2 (G = 6.674*10^-11) M = g*r^2/G = 1.646*5.25^2*10^12*10^11/6.674 = 6.80*10^23 kg

    4 Answers · Science & Mathematics · 17/01/2020

  2. I think we can use field E = λ / 2πrε₀ to find the linear charge density 20e3 N/C = λ / (2π*0.057m...

    1 Answers · Science & Mathematics · 16/01/2020

  3. ...nm = 3.50E-10 m y = y-coordinate of electron = 0.31 nm = 3.10E-10 m r = distance between proton and electron = to be determined r² = x²...

    1 Answers · Science & Mathematics · 10/01/2020

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