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To create a vacuum, a flame from a lighter or a burning cotton ball is placed in an upside-down cup. When the oxygen in the cup is burned off, the cup is placed directly on the skin
Imagine you are putting the balloon in a tank of water. Assume the balloon has X volume. It will displace that much water. When you inflate the balloon with Y liters of air, you add the two volumes together. You would now displace X+Y liters of water. I hope that's right. Essentially volume now equals volume of balloon+volume of air.
A comet is a ball of ice and dust that orbits the sun. As it gets closer to the sun, the heat and radiation from the sun cause the surface of the comet to be blown away, creating a tail that points away from the sun.
Energy is lost. According to this the speed and direction would change
It floats.
The whistle is blown and the defending team gets to take the ball out.
Cloth also.
yes as long as it lands fair it is a fair ball
The ball is placed on the 2 yard line when kicking a PAT
4 hours
its a tee
on the fourth corner.
The ball is placed at the point of the fartherest advance of the ball when the ball was declared dead. As an exmple if a player touches his knee down the ball will be placed where the fartherest point of the ball was when the knee touched down. This may or may not be where his knee touched down. The ball will be placed perpendicular to the line of scrimmge with the fartherest point of the ball at the point where the player had the ball when it was declared dead.
tumbleweed
The rubber bladder is put in and leather ball stitched, the ball is then blown up.
fill it with water and put it in the freezer +