Recent content by JohnCarter

  1. J

    How Many Bananas to Power a Light Bulb?

    Homework Statement If all of the energy from decay of the 40-K in one banana could be captured and converted into electrical energy, how many bananas would be needed to power a 100 W light bulb? There is 358 mg potassium-K per 100 grams of banana half life of potassium-40 is...
  2. J

    Finding coefficient of fuzzy block and dynamics cart.

    umm no.. enlighten me
  3. J

    Finding coefficient of fuzzy block and dynamics cart.

    I'm doing it experimentally,I don't have to calculate or estimate anything.
  4. J

    Finding coefficient of fuzzy block and dynamics cart.

    Homework Statement Calculate the coefficient of friction between a fuzzy block and dynamics cart? This is a Lab task so I have all the materials but I don't know where to start. Homework Equations u=ff/fn uk=fk/fn us=fs/fn The Attempt at a Solution I tried using the formulas...