hairs and a triangle
Shown in the above photo are human hairs and a 45 x 45 x 90 degrees triangle made of plastic. If you rub the triangle briskly into your forearm for one minute and then touch the hairs using the triangle, what will happen?
A. Some hairs will move away from the triangle.
B. Some hairs will stick to the triangle.
C. Nothing will happen.
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