Make sure the application and Mac have the latest updates.
The program has either stalled or stopped working and the computer is waiting for the application to respond and waits a certain amount of time to quit, unless the application froze then you have to Force quit it.
Another reason is if you only have the minimum amount of Ram the computer will start using your hard drive as virtual Ram and as the Hard Drive is much much slower then "Normal" Ram it takes a lot longer to read and write to it. Especially if your HD is almost full. If your programs are always getting the "Spinning Beach Ball" most of the time adding more Ram stops it.
Sometimes if you haven't restarted for quite a while some applications that haven't been updated or haven't been written very well won't release the Ram they had used after you quit it so only a restart will clear it. Simply shutting down the computer for several seconds will clear everything up.
If you want to get rid of the spinning colorful wheel on your monitor you just wait for it to load.
ball spinning on its axis- rotation ball spinning around the head- revolution/ orbiting
On apple OS X , if any process gets hanged or stuck you get a tiny beach ball which keeps spinning until it force closes. This is called "Beach Ball on Death" - BBOD
The little spinning rainbow ball means that is trying hard and you've told it to do too many things at once, or it just can't do it or process it. You cannot STOP the spinning ball, because it is working harder than normal.
Use a coloured pencil
The yellow ball is worth two points.
An apple is essentially a little ball of fiber.
If the apple is a "normal" apple of size and weight, and the bowling ball is standard, and they are dropped from the same height, the bowling ball will hit the ground first.
Gravity, air resistance, force produced by the spinning of the ball.
spinning basket ball on finger
Because a tennis ball is hairy, and this means that the hairs stick out from the ball and involve more water in the spinning process (as compared to a smooth ball of otherwise identical size, weight) which uses up the energy of the spinning faster.