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| a unit of energy, the work done by a force of one newton when its point of application moves through a distance of one meter in the direction of the force |
| the acceleration of a falling body in the earth's gravitational field, inversely proportional to the square of the distance from the body to the center of the earth |
| band spectrum | |
| —n | |
| a spectrum consisting of a number of bands of closely spaced lines that are associated with emission or absorption of radiation by molecules | |