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Roll Off Container

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roll off container
Science Question! Internal force? Grade 8 math!?

So I’m in grade 8 and everything is so easy. But theres an internal force question we didn’t learn. Can you please answer them. Thanks :)
Which of the internal forces is represented in each…
a) ripping a piece of paper towel off the paper towel roll
b) pulling on ropes to set up the tent (I think thats tension)
c) twisting the lid off the container (I think thats torsion)
d) squeezing the tire on a bicycle to check its pressure
Thanks :)

a) sheer
b) tension
c) torsion
d) compression

Igenio: roll-off/mobile, tiltable multi-container system for differential waste collection