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In: Physics

True/False: A machine’s efficiency can be over 100%. The rotational inertia of a body increases when...

True/False:

  1. A machine’s efficiency can be over 100%.
  2. The rotational inertia of a body increases when the distance of its mass from the rotation axis increases.
  3. The Leaning Tower of Pisa is in stable equilibrium.
  4. When a tin can is whirled in a horizontal circle, the net force on it acts inward.
  5. You are in a car going over a cliff. You are weightless.

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