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  1. ...v 1 / v = 1 / f - 1 / u 1 / v = 1 / 38 - 1 / 19 = (1 - 2) / 38 = - 1 / 38 v = - 38 cm The image distance is negative —> the image is virtual, ...

    1 Answers · Science & Mathematics · 19/11/2020

  2. "compact" implies "point-like"; use similar triangles 3.2cm / 8.2cm = d / 16cm d = 6.2 cm

    2 Answers · Science & Mathematics · 23/11/2020

  3. 1) By C = ɛA/d =>C = [8.85 × 10^−12 x 2291 x 10^-4]/[0.46 x 10^-2] =>C = 440.77 x 10^-12 F Now by Q = CV =>Q = 440.77 x 10^-12 x 6  =>Q = 2.64 x 10^-9 C 2) By U = 1/2CV^2 =>U = 1/2 x 440.77 x 10...

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

  4. The work of the force will change the kinetic energy of the mass neglecting friction Fd = ½m(vf² - vi²) F = ½(0.011)(548² - 0²) / 0.365 = 4,525.128... N round as appropriate. Please remember to select a...

    1 Answers · Science & Mathematics · 30/11/2020

  5. 1 liter is 1000 cm ^3 The hose area is 19.635 cm ^2 so the velocity needed is...

    1 Answers · Science & Mathematics · 03/12/2020

  6. ...value for "v" to get 1/f = 1/9 - 1/13.5 1/f = 3/27 - 2/27 = 1/27 f = 27 cm B) height of the image hi/ho = - v/u hi = 2.90 * 13.5/ 9 = 4.35 cm C...

    1 Answers · Science & Mathematics · 17/11/2020

  7. Unstretched spring length = 40 - 20 = 20 cm stretched spring length = √((90 - 10)² + (70 - 40)²) = 85.44 cm ...

    2 Answers · Science & Mathematics · 03/12/2020

  8. ... radius of the circular path is R = 62.5cos57.23 = 33.8285... cm F = mω²R = m(2π/T)²R = 4mπ²R/T²...

    1 Answers · Science & Mathematics · 01/12/2020

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