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  1. ... from ma = 7*3 = 21N  But the net force = F - mg*μ k   -> F = 21 + 7*9.8 * 0.2  ~= 34.7N To accelerate the small block...

    1 Answers · Science & Mathematics · 14/10/2020

  2. ... / RT = (1.01 bar) x (6.88 L) / ((0.083144598 L bar/ K  mol) x (296 K )) = 0.282348 mol NH3 (0.282348 mol NH3) x (17...

    1 Answers · Science & Mathematics · 29/09/2020

  3. By kinematics: acceleration = net force / mass = -µ k *m*g / m = -µ k *g a = -0.15 * 9.8m/s² = -1.47 m/s² ...

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

  4. use the energy to get spring constant PE = ½kd² = 18 k = 2•18/0.02² = 90000 N/m f = (1/2π)√( k /M) = 4 √( k /...

    1 Answers · Science & Mathematics · 16/10/2020

  5. frequency f = (1/2π)*√( k /m) + (1/2π)*√(7600kg/s² / 105kg) f = 1.35 Hz ◄ period T = 1/f = 0.739 s ◄ Hope this helps!

    1 Answers · Science & Mathematics · 12/10/2020

  6. ...calculate the Henry's Law constant for N2: Solubility = K P 5.6X10^-4 mol/L = K (0.80 atm) K = 7....

    2 Answers · Science & Mathematics · 12/10/2020

  7. ... by  y(x,t) = A sin(kx - ωt + ∅ ) where A = amplitude of wave = 5m k = wave vector ω = angular frecuencia of wave ⇔ ω ⇒ 20 rad/sec  ∅ = phase constant ...

    1 Answers · Education & Reference · 09/10/2020

  8. KE becomes friction work -- ½mv² = µ k *m*g*d mass m cancels, the rest rearranges to v = √(2*µ k *g*d) = √(2 * 0.62 + 9.8 * 12) m/s = 12 m/s

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

  9. ...a(t) is the population at time "t" a is the initial population k is the growth (or decay) rate t is the time. We are ...

    1 Answers · Science & Mathematics · 25/09/2020

  10. frequency f = ω / 2π and ω = √( k /m) so if you increase the mass m (by adding passengers), the frequency DECREASES. Hope this helps!

    1 Answers · Science & Mathematics · 12/10/2020

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