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please can you write up your experiment from today. This simply means produce a graph of the results and answer the questions.

I would like you to give this a good shot. You should have enough data, but if you require more data, please do use someone else's data so that you have enough different heights in which to see a trend. 

Ideally, this should be done in 20 mins and don't wish you to spend much more time on this that that. I think everyone should be able to plot a graph in the 20 mins however, and the questions can be answered in short hand to save time.

Many thanks

Mr Clarke