Respuestas
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Respuesta:
A. When a flag is hoisted on a flagpole, it is
pulls down a rope wrapped around a pulley to get the
flag go up.
CHANGING THE DISTANCE OF A FORCE. Imagine that you have to move a box
heavy up to the second floor of a building. It would be easier to upload it on a plane
inclined (like a flight of stairs) that throw it straight up. But
When taking the box up the stairs, it travels a greater distance than if you were to throw it straight up.
CHANGING THE AMOUNT OF FORCE NEEDED. A bottle opener is a lever.
A weak force can be applied to its end to lift it along a
some distance and exerts a brief but powerful force on the bottle cap.
Explicación:
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