mcdonald55 mcdonald55

12-05-2018
Biology

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Please I need help with questions 55 and 56 and it’s very hard and I’m struggling with it and if you need to see the picture big then click on it and it will be big

Please I need help with questions 55 and 56 and its very hard and Im struggling with it and if you need to see the picture big then click on it and it will be b class=

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alicemaddock alicemaddock

12-05-2018

1) put some form of lubrication like oil or water in front of the block so that it can slide easier.
I’m not sure about the second one sorry x

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