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  1. r (t) = t² i^+ t³ j^ v(t) = 2t i^ + 3t² j^ a(t) = 2 i^ + 6t...

    3 Answers · Science & Mathematics · 11/11/2019

  2. ...ω = 2PI / T = PI / 26 rad/sec  tangential speed Vt = ω * r = 230PI/26 = 27.8 m/sec  2)What is the x component Vtx...

    2 Answers · Science & Mathematics · 14/07/2020

  3. (a) τ = r x F τ = (4.0, 3.0, 0)m x (-7.0, 5.0, 0)N = (0, 0, 41) N·m or 41 k hat N·m ◄ (b) cosΘ = a•b / |a|*|b| r •F = 4.0*-7.0+3.0*5.0 = -13 | r | = √(4.0² + 3.0²) m = 5...

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

  4. On the right side, the resistance is from 1/S = 1/ R + 1/(2R) + 1/ R = 5/(2R). So then S = 2R...

    2 Answers · Science & Mathematics · 30/07/2020

  5. 4. Li = m2 v R / 4  m2*v* R /4 = (½*m1*R² + m2*( R /4)²... R /16)*w 4v = (8R+ R )*w = 9Rw w = 4v / 9R for v=6 R =12 w = 4*6 / 9*12 = 2/9 = 0.22 rad/s

    1 Answers · Science & Mathematics · 13/05/2020

  6. 1) the car's acceleration is radial: a = v² / R = (17m/s)² / 230m = 1.26 m/s² If the car is ...

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

  7. Use the equation... i = -Vo/ R *ln(1 - iR/Vo) i = 7.1, Vo = 32, R = 3.2, L = 3, t = ? now transpose equation to make t the subject... plug in the values & t = 1.16 secs

    1 Answers · Science & Mathematics · 13/03/2020

  8. T = R *C = 5.0 *110 =  0.55 msec  8/51 = 1-e^-k 43/51 = e^-k k = -ln 43/51 = 0.1706 = t/T t = T*0.1706 = 94 μ sec 

    1 Answers · Science & Mathematics · 10/03/2020

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