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? asked in Science & MathematicsEngineering · 8 years ago

could you say the physics laws in these devices?

I want to know the physics laws in these devices,even if you knw one of them,put the number and answer:

1-scanner

2-ball screw

3-matrix printer

4-hinge

5-linear ball bearing or ball bearing

please answer soon,thanks for your help.

1 Answer

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  • Philomel
    Lv 7
    8 years ago
    Favorite Answer

    1 rope and pulley

    2 wheel, inclined plane,& screw( inclined plane on an axle)

    3 solenoid

    4 lever and axle

    5 wheel

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