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4 Cards in this Set
- Front
- Back
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centre of gravity |
point in an object in which all of the mass of the object can be thought to be concentrated; the object’s weight can be thought to act through here
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centre of mass
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point in an object in which all of the mass of the object can be thought to be concentrated; the object’s weight can be thought to act through here
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elevator
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lift, used to go up and down a skyscraper
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superstructure |
frame of a skyscraper |
