Physics, 03.11.2020 17:40 mickecia1

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Define simple machine
Why are simple machines used?
What is mechanical advantage? Write down its formula
What is velocity ratio? Write down its formula
Define input work and output work,
What is efficiency of a machine?
What are the factors that affect the efficiency of a simple
How can the efficiency of a simple machine be increase

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Define simple machine
Why are simple machines used?
What is m...

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