I think you're referring to the funnel apparatus where the large end of the funnel is pointed down. The funnel itself is just a little larger than the ping-pong ball. Air is blown through the funnel downward towards the ping-pong ball, but the ball doesn't drop. Instead it is held fast inside the funnel.
The explanation lies with the Bernoulli Principle. This principle states that along any streamline of air (a streamline is the path that an air molecule takes), if the velocity of the air drops then the static pressure at that point will rise, and vice-versa. So what happens with the funnel and ping-pong ball is that the air coming out of the funnel has to flow around the ball and therefore it becomes constricted against the sides of the funnel. It doesn't have much room to get by, in other words. That means it has to flow faster over the top of the ball. Faster = lower pressure. When it gets by the ball and expands in the funnel, it slows down. Slower = higher pressure. This pressure difference (high pressure below, low pressure above) is what keeps the ball suspended in the funnel.
Blow horizontally across the top. Trust me I just saw it done.
We can use astoterf on hill to slow the marble
The ball whizzed right past my head, and went through the window.
Because a golf ball is denser. When you cut a golf ball and a table tennis ball in half, the golf ball is solid all the way through. The table tennis ball has a cavity filled with mostly air inside.
Anything that had potential energy then converted to kinetic energy. A good example would a ball. If you are playing bowling and you are swinging the ball backwards and about to through it foward, the ball has potential energy. Once you release it, and while the ball is falling it has kinetic energy. The energy of the changes from potential to kinetic energy. Hope this helps XD
Its a fat foot ball tennis ball my balls bounce the highest
Ok. Sun: basket ball mecury: marble venus and earth: tennis ball mars: pingpong ball jupiter: medium sized football saturn: small sized football Uranus: pingpong ball neptune: pingpong ball (pluto): marble
Cricket Ball yaar
a pingpong ball
There is no rubber in a soccer ball
Why funnel is used for dropping the ball bearing
Only because of the sound made when the ball hits the bat or paddle
A pingpong ball. There much lighter like if i throw them at my head with my shotgun it will not hurt much.
The harder you bounce the ping pong ball the higher it goes........the softer you bounce a ping pong ball the shorter it bounces. You control the heighth.
plastic , designed to be very light for hitting with a pingpong bat It is made of plastic
boil it in water, the dent should rise back up unless there is a crack
it is in fact regular air inside the ball. the smell is because its contained for so long the air has become stale.
A foosball out of those two would be more like a golf ball because it is quite solid. It is basically a perfectly smooth, hard plastic ball.