Centuries: 4th century - 5th century - 6th century
Decades: 440s 450s 460s 470s 480s - 490s - 500s 510s 520s 530s 540s
Years: 491 492 493 494 495 - 496 - 497 498 499 500 501
... is also the unit of weight, as weight is the force acting between two objects due to gravity. A mass of one kilogram, at the surface of the earth, has a weight ...
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