Recent content by Bohring

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    Significant Figures and speed of a runner

    Thanks for your help everyone! I'm normally okay with things like this, but the more I thought about it, the more I got confused! I was always taught to put your answer to the same number of sig figs as your least accurate piece of data. In this case, it's 1 sig fig, but as you say, it seems...
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    Significant Figures and speed of a runner

    Homework Statement Calculate the speed of the runner. Times, measured to nearest 5 seconds: 95, 100, 85, 80 seconds. Mean Time: 90 seconds. Distance: 200mHomework Equations Speed = Distance/TimeThe Attempt at a Solution Speed = Distance/Time = 200/90 = 2.2222222222 ms-1 Not sure how many...
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    Amphibious Bike Propulsion Problem

    I'm liking the idea of a screw system! I'm using a flipper system at the moment, which is shown in the photo, but it's just too slow. I did try a roller system, but I think you'd need two rollers, as with one, it would spin the wrong way. The main problem though it is works brilliantly on...
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    Amphibious Bike Propulsion Problem

    Hi Guys, I've made an amphibious bike, shown below. Basically, it's a bike which you can use to cycle along the road, down the slipway into the water with litle/no changeover, and then pedal off through the water. It all works, and floats, but I'm struggling to find a way to propel it in...
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