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  1. Atomic number of helium , Z = 2 Rydberg constant, R = 1.097 × 10⁷ m⁻¹ = 1.097 × 10 ⁻² nm⁻¹ n₂ = 3 to n₁ = 2 Rydberg equation...

    1 Answers · Science & Mathematics · 22/09/2020

  2. Helium /Atomic mass 4.002602 u, and C 12.0107 u He (4.002602) x 3 = 12.007806 g He - C = 12.007806 g - 12.0107 g = -0.002894 g (mass lost) E = mc² = 0.002894 g(1kg/1000g) *299792458)² = 2.60100 × 10 ^11 J

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

  3. (( 10 .0 mol x 5.00 bar) + (5.00 mol x 20.0 bar)) / ( 10 .0 mol + 5.00 mol) = 10 .0 bar

    2 Answers · Science & Mathematics · 04/10/2020

  4. ...and velocity, so we just use K = 1/2 mv^2. K = 1/2 mv^2 = 1/2 * 6.64* 10 ^-27 kg * (2.5 * 10 ^6 m/s)^2 = 2.075* 10 ^-24 J Now we can use the...

    1 Answers · Science & Mathematics · 22/07/2020

  5. Your translation is adequate! potential energy becomes kinetic energy: q * potential = ½mv² 2*1.6e-19C * 1.2e6V = ½ * 6.64e-27kg * v² solves to v = 1.1e7 m/s which is < 4% of the speed of light, so we can ignore...

    1 Answers · Science & Mathematics · 08/02/2020

  6. ...people realize that our Sun will only use up ~ 10 % of its Hydrogen during its entire lifetime...'s core accumulates more and more Helium over time, and this Helium makes the core get...

    14 Answers · Science & Mathematics · 26/08/2020

  7. ...13.8 billion light-years. 3. Roughly 8 to 10 billion years ago, within our already existing... clouds of gas (mostly hydrogen, some helium ) and "dust" (anything else blown out into space...

    32 Answers · Science & Mathematics · 26/10/2020

  8. ... DNA, 1 million time's that in each cell, and 10 ^14 cells in our bodies = 2 x10^31 ... up and formed a few other atoms such as helium .  Some atoms fused together to make...

    2 Answers · Science & Mathematics · 16/09/2020

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