How can we help?
Federico Chang
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Federico Chang commented,
maybe " while (y < 400){ text(y, 0, y); y+=50;} "Sorry ,i'm not Native speaker.try it on your own, see the answer
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Federico Chang created a post,
whar is newton's law before ?
Many years ago ,i think there is a video about Newton 3 law compare what Newton himself learn it from his class?i can't find it, thank you.
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