Answer:
Second ball
Explanation:
When a ball is thrown up with a certain velocity when the object reaches the same point from where it was thrown the velocity of the object becomes equal to the velocity with which the ball was thrown.
First ball
Second ball
Third ball
From the equations above it can be seen that the second ball will have the highest velocity when it hits the ground.
So, 
The Wavelength . I had this question earlier. Hope this Helps! Brainliest Answer?
2 meters per second for 8 seconds
1.5 meters per second for 8 seconds
The average speed should be 1.8 or 1.7 but I think its 1.8
Answer:
5) The rings of Saturn are the most extensive ring system of any planet in the Solar System. They consist of countless small particles, ranging in size from micrometers to meters, that orbit about Saturn. The ring particles are made almost entirely of water ice, with a trace component of rocky material. Saturn is not solid like Earth, but is instead a giant gas planet. It is made up of 94% hydrogen, 6% helium and small amounts of methane and ammonia. Hydrogen and helium are what most stars are made of. It is thought that there might be a molten, rocky core about the size of Earth deep within Saturn
I don't know number 3
Explanation:
