It’s 4 because a coiled springs is closely spaced then widen
Another (slightly more technical) name for kidney stones is "renal calculus".
I know this because we have met many times, and we are old friends.
Answer:
0 km/h
Explanation:
Relative speed is the speed of a moving body with respect to another.
When two bodies move in the same direction then the relative speed is calculated as difference of their speeds.
In this case;
The two cars have the same speed. The relative speed will be;
72 km/h -72 km/h = 0 km/h
They are rotating because the earth never stops rotating.
