Recent content by Jack.P

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    Solving a convex mirror problem

    Homework Statement Given the following information: convex mirror, focal length (f) = 12.5 metres, height object (ho) = 5 metres, height image (hi) = 1 metre. Find distance object (do) and distance image (di). Homework Equations 1/f = 1/do + 1/di Magnification= -hi/ho = di/do...
  2. J

    Archived Explaining drag is proportional to speed squared with Bernouilli's Equation

    Homework Statement How does Bernoulli's Equation for calculating the pressure in a moving fluid (as below) explain that drag increases proportionally to the square of the speed? I have been dropping parachutes and recording the time to fall, so my question is in reference to free-fall motion...
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