hello, when u place a group of short straws in water, they float and stick together. What forces are acting on the straws that make them stick together?
if you cut them up into 1 cm lengths, and let them float on water by themselves, they started to arrange themselves usually side by side, or end to end. However they rarely join perpendicular to each other. If i knew what forces make the straws stick together i'd understand this, but im not too sharp.
Can any one explain this to me?