Question

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define motion... and ball bearing​

Answer 1

Answer:

In physics, motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time.

A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation ... Most ball bearings are a single-row design, which means there is one row of bearing balls. This design works with ... In general, ball bearings are used in most applications that involve moving parts.

Answer 2

Answer:

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