Wers the question.
10.taran wants to lift an object using a
simple machine. the pictures show
three possible ways he could set up the
simple machine.
torce
fulcrum
object
force
fulcrum
object
force
t
fulcrum
object
which picture or pictures show how
taran can use the simple machine so it
would reduce the effort needed to lift
the object?
a the top picture
the middle picture
© the bottom picture
o the top and middle pictures

The sound level near a noisy air conditioner is 70 db. if two such units operate side by side, the sound level near the, would bea. 70dbb. 73 dbc. 105 dbd 140 db

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.

How do cracks affect the rate of weathering?