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11.01.2021 •
Physics
8. What quantities are needed to describe the position of a water fountain relative to where you are standing?
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Ответ:
D. the distance and direction to the water fountain
Explanation:
To describe the position of a water fountain relative to where one is standing, the distance and direction to the water fountain must be known.
This quantity is known as the displacement.
Displacement is a vector quantity with both magnitude and direction. To specify the magnitude of a displacement, we use the length of path and in this case the height or sometimes the distance. The direction attribute distinguishes distance from displacement The perfect quantity to solve this problem is the displacement and it specifies the distance of the path and the direction traveled.Ответ:
Generak law of physics according to which quanity called momentum that characteristics motion never changes in a isolated collection of objects that is the totsl momentun of systems remain constant