kristenhani
20.11.2020 •
Chemistry
Which of these steps is most likely to be part of an investigation about friction?
A.
putting different kinds of batteries in a toy car
B.
measuring how long it takes one full cup of water to evaporate
C.
testing which surface is easier to slide a wooden block across
D.
counting how many paper clips stick to a magnet in a chain
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Ответ:
I want to say option C: Testing which surfa e is easier to slide a wooden block across.
Explanation:
I'm not 100 % sure though with my answer. I'm truly so very sorry if my answer is wrong. I tried my best.
Ответ:
My sample would be 4000 years old because on my graph, I had about 9 Virtualium left at trial 4 so I am guessing that it would be 4000 years old.