It fixes the dent because the heat from the boiling water makes the air inside the ping pong ball expand, causing the dent to be filled out.
The heat cause the air inside the ball to expand and undent the ball
The heat will cause the air inside the table-tennis ball (ping pong ball) to expand and so push the dint out.
Put an exact amount of water in a measuring cup. Drop in a golf ball. The increase in water level equals the volume of the golf ball, assuming the ball doesn't float. For example, 200mL before ball. 280ml after ball dropped in. Therefore volume equals 40ml or 40 Cubic Centimeters.
The diameter was 26 cm.
If they float in water, then it is because the density of a ping pong ball is lighter than the density of water. The density of water is just below 1, and the density of a ping pong ball is much less than 1.
The hot water cause the air inside the ball to expand and push out the dent.
The heat cause the air inside the ball to expand and undent the ball
The heat will cause the air inside the table-tennis ball (ping pong ball) to expand and so push the dint out.
It the heat from the boiling water will expand the air inside the ball pushing the dent out. The same can be done with ping pong balls and a lighter.
The hot water causes the air trapped inside the ball to expand and it may pop the dent out to the original shape.
The heat from the boiling water warms up the air inside the ping pong causing the air to expand and push the dent of the ping pong back out.
The dent will become deeper
The hot water heats the air inside the ball, which expands and forces the dent to pop out.
The gas in the ping pong ball will expand, pushing the dent out.
boil it in water, the dent should rise back up unless there is a crack
ping pong ball
Weigh it down some how in water and boil the water,or you may also use the butt of a racket and round the ball back up