If we wanted to describe and better understand the structure of the rings of saturn, we might develop a
scale. system. machine. model.
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Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m