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  1. ... where k = 1/4πε₀ = 8.99e9 N·m²/C² For r < 10 cm, the outer shell of charge has no effect on the field...

    1 Answers · Science & Mathematics · 12/09/2019

  2. ...  88.2 - 11.48 = 76.72 N Centripetal force is mv^2/r (76.72×1.6/1.17)^.5 = velocity = 10.24 m/s Update if you need more, and...

    1 Answers · Science & Mathematics · 07/12/2019

  3. r = 7.31 *10^-11 m That's what it says. It is not r^2 = 7.31 *10^-11 m. r^2 = 5.34×10^-21 m --------------------- Did it not just...

    3 Answers · Science & Mathematics · 05/02/2019

  4. Air is pretty close to an ideal gas but you are getting up there in pressure. calculate the density using the ideal gas equation and then check it other published data. https://www.engineeringtoolbox.com/air-temperature-pressure-density-d_771.html this looks like about 240 kg/m^3...

    2 Answers · Science & Mathematics · 09/12/2019

  5. cosΘ = adj / hyp = z / √(z²+R²)

    1 Answers · Science & Mathematics · 05/09/2019

  6. When you connect 7 equal resistors in parallel, the equivalent resistance is 1/7 of the resistance of the individual resistors. So each piece has resistance 35 Ω. The entire wire is 7*35 Ω

    1 Answers · Science & Mathematics · 01/05/2019

  7. Just prior to collision, v = √(2gh) = √(2 * 9.8m/s² * 4.35m) = 9.23 m/s conserve momentum during the collision: 84.5kg * 9.23m/s + 55.0kg * 0m/s = (84.5 + 55.0)kg * V and so the post-collision momentum is V = 5.59 m/s H = V² / 2g = (5.59m/s)² / 19.6m/s² = 1.60 m If...

    1 Answers · Science & Mathematics · 15/05/2019

  8. F = mv²/r Multiply both sides by r: Fr = mv² (equation 1...

    2 Answers · Science & Mathematics · 10/01/2019

  9. a) (mVmax^2) / r = m g Vmax = sqrt(g / r) b) L = r m sqrt(2/3)Vmax L... = 1/2 m V^2 - m g r (1 - cosα) V^2 = [Vmax^2 + 2 g r (1 - cosα)] then Em = 1/2 m [Vmax^2 + 2 g r (1 - cosα)] - m g r...

    2 Answers · Science & Mathematics · 06/08/2019

  10. QUESTION1: How much charge is enclosed by Gaussian sphere S2? No, you don't need a formula. You're told that the "total charge [is] q", so I'd say qenc = q QUESTION 2: so how much charge is...

    1 Answers · Science & Mathematics · 11/09/2019

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