Biology, 24.03.2020 21:03 linag969p9xeno
Gregory wants to make a hole in a flat piece of wood. He places object Y on the piece of wood, and then object X on top of it.
He then pushes down while rotating object X. Which two simple machines is Gregory using to perform this task?
A.
a wheel and axle and a pulley
B.
a pulley and an inclined plane
C.
a screw and a wedge
D.
a wheel and axle and a screw
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Gregory wants to make a hole in a flat piece of wood. He places object Y on the piece of wood, and t...
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