Thế nào là chuyển động tròn đều ? cho ví dụ

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?

The force it would take to accelerate an 900-kg car at the rate of 6m/s2