Well there are mamy reason...
1) how wide, big, and long the river is
2) Any hills or high points in the river from which the current can be increased
3) If their is something blocking the river ( like a beaver dam)
4) Even the wheather ( like if its windy the current will flow faster or vise versa if the wind is blowing against the current )
Current - The water flowing through the river
For many reasons, like it is going down a hill or going through a rocky area and flowing over it, causing things like rapids, wider and narrower sections, deeper and shallower sections, other rivers flowing into them and many things.
Yes.
We call it differential rotation when parts of a body move at different speeds. This is true of the gas giants, and of the sun, too.
The question is meaningless; different dwarf planets move at different speeds.
The planets move on little circles that move on bigger circles.
They move at different speeds.
They move at different speeds.
Matthew Maury
Different cells move at sightly different speeds, but due to their size, it is very slow.
An object can move in a circle at different speeds.
It can
The gravitational pull of other objects in space affect all
Yes, but the object with the greater speed will move farther in the same amount of time.