If all of the energy from decay of the 40-K in one banana could be captured and

Question

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? Your solution must begin with a calculation of the amount of 40-K in a banana, and include the half-life and the decay energy 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? Your solution must begin with a calculation of the amount of 40-K in a banana, and include the half-life and the decay energy

Explanation / Answer

You'll need to look up the amount of 40-K in a banana as they say.

You'll also need to look up the half life and the decay energy from the decay of 40-K.

Basically, you need to power a 100W light bulb so you know the power output you need. You also know the energy released per decay of 40-K so you know how many decays have to occur. Given the half life, you can then work out how much 40-K in total you need and given the amount of 40-K per banana, you can work out the total number of bananas.

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