English, 14.11.2020 01:00 lexis1446

1) Simple machines make work easier for people by changing the amount of force needed to move an object.
The unit for force is Newtons, and it can be measured with a tool
called a spring scale.
What can be inferred from these quotes from the text?
A)
A pulley increases the number of Newtons needed to
lift an object.
B)
Inclined planes and spring scales can only be used
with spring scales.
)
Spring scales can also be used to find the volumes of
inclined planes and pulleys.
D)
The number of Newtons needed to lift an object is
less with a pulley than without it.

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1) Simple machines make work easier for people by changing the amount of force needed to move an ob...

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