There are three kinds of levers. what makes them different from each other?
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Ответ:
2. Wheelbarrow . Fulcrum is the wheel. Input = handles Output = objects inside wheelbarrow
3. Baseball bat . Fulcrum is the hands. Input = Bottom section of the bat. Output = top section of the bat with more force.
Ответ:
A=48 CM2
Explanation:
A=9 X 10
A=90 CM2 9-2=7
A=6 X 7
A=42 CM2
A=90-42
A=48CM2