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  1. "orbital radius of about 3.29 km (from the center of the Earth)" ?? that is nonsense. earth radius is 6,371 km "The orbital period for a satellite is dependent on the mass of the satellite and ________"  also wrong, it is not dependent on the mass at all. T = 2π√[R³...

    1 Answers · Science & Mathematics · 13/11/2020

  2. ...wrong formula. The area to use is that of a SPHERE of radius r , not a circle. So P = I*A = I*4πr² ...

    1 Answers · Science & Mathematics · 12/11/2020

  3. Centrifugal force F = mv²/ r where m - mass of stone v - speed r - radius of circle Find v such that F exceeds 25N required to break a string v = √(Fr/m) v = √(25*2/0.75) = 8.16 m/s

    1 Answers · Science & Mathematics · 12/11/2020

  4. ...of the circle.(because airplane is turning 90°from east to south) s = (2 R pi)/4 = R pi / 2 R pi / 2 = v t divide by pi/2 R = 2 v t...

    1 Answers · Science & Mathematics · 12/11/2020

  5. ... force at the bottom is weight+centrifugal force F = mg + mv^2/ R = m (g + v^2/ R ) radius of path R is equal to length of rope extract...

    1 Answers · Science & Mathematics · 11/11/2020

  6. ...box in that point and that is weight+centrifugal force F = mg + mv²/ R = m (g + v²/ R ) F = 25 * (9.8 + 11²/7.5) = 648.3 ...

    1 Answers · Science & Mathematics · 11/11/2020

  7. ... is gravitational constant M is the mass of the Earth r is the distance from the center of the Earth We are not...

    1 Answers · Science & Mathematics · 11/11/2020

  8. ...the text), it only changes the direction of the vector of speed. a = v² / r a = 6670² / 8.92x10⁶ = 4.99 m/s²

    1 Answers · Science & Mathematics · 12/11/2020

  9. The simple way is to put mv^2/ r = T but this forgets about gravity. The longer way ...

    1 Answers · Science & Mathematics · 12/11/2020

  10. ... that is in series with 4 and 2.5 = 17.6 and I = E/ R = 15/17.5 = 0.85 amps

    1 Answers · Science & Mathematics · 11/11/2020

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