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Tennis balls are made of a layer of rubber surrounding a hollow center. Then they put a thin layer of adhesive on the rubber and cover it with a layer of felt (usually yellow). The letters that you may see on the felt are just black ink. The air pressure inside the ball is 12 psi (pounds per square inch) greater than ambient air pressure at sea level (the 'normal' air pressure all around you). The ambient air pressure is 14.7 psi, so all together, the pressure inside the ball is 26.7 psi. I'm not quite sure what you mean by the 'amount of air inside the ball,' but you can figure out how much space is in the ball using the equation for the volume of a sphere (4/3*pi*r^3). A tennis ball that I have here is 2 1/4 inches across, with 1/8 inch thick rubber all around. So the open space inside is 2 inches across (the diameter is 2 inches). The radius (r) is half of that, so r=1 inch. So the volume of the inside of the ball is 4/3*pi (pi=3.14) inches^3 = 4.2 inches^3. (You would say this as 4.2 cubic inches of open space.)
It really depends on the ball. Two-piece balls have a solid rubber core (heated and pressed into shape) and an exterior covering of thermoplastic (ionomer resin). More exprnsive three-piece balls have either a solid rubber or liquid core with rubber wire wrapped around it to keep it under tension. this keeps the ball hard and stops it from losing its shape. This is given a coating of ionomer, balata rubber or polybutadiene, a special plastic based on petroleum that provides bounce. The latter, however, must be mixed with zinc to strengthen it. Three-piece Golf balls can take 80 manufacturing steps, 32 inspections and 30 days to make one ball, whilst two-piece balls take half the steps and can be made in a day.
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Does a tennis ball have rubber or plastic in it?
Rubber.
Which ball bounce more tennis ball baseball cricket ball or rubber ball?
It's tennis ball.
What is in a tennis ball?
rubber and air
What is the tennis ball and racket ball made of?
now rubber
What materials does the tennis ball have?
A tennis ball has rubber and felt, which is stuck on with an adhesive. For logos, black ink.
What is materiel of a tennis ball?
rubber and green fuzzies
Is the rubber inside of a tennis ball affected by weather?
yes the weather effect the rubber inside
What has more mass a tennis ball or a styrofoam ball?
A tennis ball has more mass than a styrofoam ball. Tennis balls are typically made of rubber and have a greater density compared to styrofoam, which is a lightweight material.
What can you substitute for tennis balls?
you can also use a big rubber ball
What minerals are used in making a tennis ball?
Tennis balls are typically made using a combination of rubber, felt, and wool. Minerals are not a primary component in the production of tennis balls.
Why is a tennis ball bouncy?
Under the fuzzy exterior of a tennis ball is a rubber "shell". Rubber has a natural bouncy quality, but it's the compressed air inside the rubber shell that gives it that extra bounce. If you ever heat up a screwdriver and push it through the tennis ball, you should hear the air hissing out, or whooshing out in some circumstances. Hope this helped, Chris
Why are baseballs made of rubber?
Rubber helps Tennis Balls bounce better. If you get the kind of tennis balls with a very solid and not hollow rubber, it won't bounce. If it's hollow it will bounce way better. How could tennis balls not bounce without rubber? Tennis balls are made of rubber because it helps it bounce. This may sound silly, but how could a tennis ball bounce without being made of rubber? Tennis balls need rubber so that when they come into contact with the ground they do not burst or crack. It will dent slightly and go back to its original form. This is an advantage to a tennis ball being made out of rubber. so it can bounce.
