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  1. ...distance However, I’m guessing this is just a basic school-level question and a simple answer will do. Call the unit length L. E.g. L=1m. Imagine a cube of unit volume (L x ...

    1 Answers · Science & Mathematics · 23/09/2018

  2. ...sin19.0°) ± √[(7.03 sin19.0°)² + 4(1/2)(9.81)(24/0)]} / [2(1/2)(9.81)] t = 1.99 s or t = -2.46 s (rejected) Time taken = 1.99 s (b) ...

    3 Answers · Science & Mathematics · 24/09/2017

  3. ...the sun and d is the distance between the sun and the earth. g = 6.67 * 10^-11 * 1.99 * 10^30 ÷ (3.52775 * 10^22)^2 g = 1.32733 * 10^20 ÷ (3.52775 * 10^22)^2 This...

    3 Answers · Science & Mathematics · 16/03/2017

  4. ... moon exerts a stronger tidal force on the earth than the sun does. ( The top one.)

    1 Answers · Science & Mathematics · 16/05/2016

  5. OK You've done (A) B) First we need to find the magnitude of the net torque accelerating the wheel. Let's convert the final speed of the wheel (1750 rpm) into an angular velocity in ...

    1 Answers · Science & Mathematics · 04/11/2015

  6. moment of inertia I = ½mr² = ½ * 1.99kg * (0.0698m)² = 4.85e-3 kg·m² torque τ = I*α 0.608 N·m = 4.85e-3kg·m² * α α = 125 rad/s² 1280rev/min * 2πrads/rev * 1min/60s = 134 rad/s (a) t = ω / α = 134rad/s / 125rad/s² = 1...

    1 Answers · Science & Mathematics · 01/11/2015

  7. .... This is not the same as "like" or "thumbs up" which are also nice and do boost points, but only after asker awards initial points with their vote.

    1 Answers · Science & Mathematics · 13/07/2015

  8. ...mg = mv²/r => T = m(v²/r - g) = 3.21(10.7²/1.99 - 9.81) = 3.21*47.723 = 153.19 N also at loop low: T - mg = mv²...

    2 Answers · Science & Mathematics · 22/05/2015

  9. ... the 2 stars of mass m to have the same pull on each other as they do from M alone, M*m/R² = m²/(4R²) or 3) m = 4...

    1 Answers · Science & Mathematics · 12/05/2015

  10. ...and x = 0.569 m (c) I don't understand this part -- twice WHAT length of rope is used? Does that mean we're doubling up on the rope? Then we have two springs in parallel, and keq = k1...

    1 Answers · Science & Mathematics · 09/04/2015

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