Recent content by lnvoker

  1. L

    How can the energy absorbed by the water be more than the energy output?

    Homework Statement The heating element in a kettle has a resistance of 10 ohms when it is plugged into a 110V outlet. When heating water, only 75% of the energy produced is actually absorbed by the water. How much heat energy does the water absorb if it takes 4 minutes to boil the water...
  2. L

    Electroscope Properties (need explaination)

    So I came upon this problem on a quiz (didnt count for marks) about my Static Electricity Unit. It was like... An electroscope is negatively charged, with the leaf at an angle of about 45 degrees. A metal ball on an insulating handle is slowly brought to (but not touching) the plate of the...
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