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  1. ...½mv² = ½ * 12kg * v² v = 9.8 m /s² 3) W = µmgd = 0.44 * 12kg * 9.8m... It's possible you'll have to give that a negative sign. I consider it understood. 4...

    1 Answers · Science & Mathematics · 07/08/2020

  2. I'll use a slightly different convention: v = (1.2e6, 0.8e6, 0) m /s to show the i, j, and k components and by the same convention B = (0.2, 0, 0.08) T...

    2 Answers · Science & Mathematics · 10/07/2020

  3. 1) Δx = mg / k = 2.7kg * 9.8m/s² / 306N/ m = 0.086 m or 8.6 cm 2) F = mg = 5.4kg * 9.8m...39;s Second, net F = ma = 8.1kg * (9.8 - 1.9) m /s² = 64 N All answers to...

    3 Answers · Science & Mathematics · 29/07/2020

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    2 Answers · Science & Mathematics · 07/08/2020

  5. 1) V = nRT / P = (1.21 mol) × (8.3144626 L kPa/ K mol) × (302 K ) / (101 kPa) = 30.1 L 2) (4/3) × pi x ((2.5 × 10^-10 m ) / 2)^3) = 8.181 × 10^-30 m ^3 = 8.181 × 10...

    1 Answers · Science & Mathematics · 19/07/2020

  6. v (rms) = √(3RT/ M ) v² = 3RT/ M M = 3RT/v² M = 3(8.314 J/ K mol)(34 + 273 K )/(214.7)² M = 0.166 kg/mol M = 166 g/mol  or 170 g/mol with 2 sig fig

    2 Answers · Science & Mathematics · 26/07/2020

  7. ...y, ∂ V /∂z> = <4x-5y+yz, -5x+xz, xy> ________________________ a ) At P(4,2,7), grad( V ) = <4*4 – 5*2 + 2*7, -5*4 + 4*7, 4*2> = <20...

    1 Answers · Science & Mathematics · 18/07/2020

  8. ... - F, G - J, K - L, M - N, P - R, S - T, V - Z, TH-NG, A - E, E- I, I...

    5 Answers · Arts & Humanities · 15/07/2020

  9. ... the cross product for a proton (positive charge) experiencing F with direction "-j" and v with direction "i" it must be that B has direction " k " -- UP. Since v and...

    1 Answers · Science & Mathematics · 29/07/2020

  10. ...by F(net) = F(applied) - F(friction) =>ma = F - μ k x N =>68 x a = 441 - 0.21 x (mg) =>68a = 441 - 0.21 x 68 x 9.8 => a = 4.43 m /s^2 Thus by v = u + at => v = 0 + 4.43 x 4 => v = 17.71 m /s NOTE: As there...

    1 Answers · Science & Mathematics · 06/08/2020

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