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Technology

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i'm not really sure about this answer, because i didn't find it in my book. i think i'm correct. please check:
10. A wrench uses the principle of a(n)__________ in its operation.
a. lever
b. inclined plane
c. pulley
d. wheel and axle

B?

  • Science -

    I think it's a lever, but wait for one of the science teachers to respond.

  • Technology -

    alright

  • Technology -

    lever it is.

  • Technology -

    ok

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