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Anonymous users2024-02-07World Cup Football Standards.
The criteria are as follows: the volume of the football should be 685mm
695mm.
The weight of the soccer ball is 265g
The circumference of a football must not be more than 71 cm or less than 68 cm.
When the football is inflated, its pressure should be equal to 0 6-1 1 atmospheres (at sea level), i.e. equal to 600-1100 grams'.
The outer layer of the soccer ball is made of cowhide, and then a layer of cotton cloth is attached to the rubber bladder. However, there is already a new material to replace cowhide.
Football is based on Jamal Forsz's law, which yields e-2*d-89-e-rts=st-t=p, i.e., the week ratio.
is the best.
The soccer ball has 32 pieces of leather, generally made up of black and white, 12 black pentagons, and 20 white hexagons.
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Anonymous users2024-02-06The circumference must not be more than 71 cm or less than 68 cm, and the diameter should be between the most centimeters. The weight must not be more than 453 grams or less than 396 grams at the start of the race.
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Anonymous users2024-02-05The illustration table is as follows: Soccer Over Under refers to the sum of the goals scored by both teams in 90 minutes (excluding extra-time or penalty kicks in any match). Examples:
1. 2 goals or under: if the over goal is more than 3 goals (inclusive), even if you win, the under goal is 1 goal (inclusive) or no goal is considered to win, if you just score 2, no matter the big ball or the small ball is not a win or a loss; 2. 2 goals: The big goal is to score more than 3 goals (inclusive) to win, to score 2 will lose half of the bet amount, and to score one or not to lose; Playing a small ball is to score 1 goal or not to win, into 2 will win half of the odds of the bet amount, into 3 (inclusive) or more will lose; 3. Ball:
The over goal is to win if you score more than 3 goals (inclusive), lose if you score 2 goals, and if you score more than 2 goals, you will lose; And so on, there are 3-balls, 3-balls, etc.;
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Anonymous users2024-02-04Summary. Soccer Over/Under markets refer to markets where the total number of goals scored by both teams is higher or lower than a certain value.
Soccer Over/Under markets refer to markets where the total number of goals scored by both teams is higher or lower than a certain value.
2. Generally, in the absence of an explanation of Zheng Belt, the total number of goals scored in the Over/Under market refers to the result of 90 minutes of regular time (including stoppage time, excluding extra time).
3. For example: Team A vs. Team B, the big state with the small ball market is as follows: (1) Cover the loose ball above the Acer (2) If the two teams score 0 or 1 or 2 goals in the regular game time, then (1) is in the option, otherwise (2) is in the option.
The football field must be rectangular, 90-120 meters in length, 45-90 meters in width, the goal is high in meters, and the width is in meters, and the football is made of leather or other suitable materials, with a circumference of no longer than 70 cm and not less than 60 cm. The area of the women's soccer field is the same as the area of the men's soccer field. >>>More
Unfortunately, I can only tell you that your choice is wrong, because air and water are different mediums, and the resistance of air to the size of the two balls is so small that it can be ignored, so the size of the ball can land at the same time, if there is a professional instrument to measure, it should be said that the size of the ball is not at the same time, but the difference between the size and the ball is too small, so small that it is ignored, because the air resistance is too small and too small, but the resistance of water is much greater than the air, and the obstruction surface of the size ball is not the same, There are two other influencing factors in the water, buoyancy influence, those who know physics know that the size of buoyancy is related to the volume, the volume of the size of the ball is of course different, then it is easy to conclude that the ball of different sizes will definitely not land at the same time in the water, but if you say that the difference between the size of the two balls is not big, then the gap between the landing will not be very large, and the impact of buoyancy and drag will not be large, or it can also be small enough to ignore, what I stated above is just to say, When the difference in the size of the two goals is obvious. Hopefully, this answer will satisfy you.
Don't talk nonsense if you don't understand downstairs, the over/under is the basic judgment of the spinach company on the probability of hitting the over/under in this game. is to represent a dividing line. >>>More
The determining factor of the magnitude of kinetic energy. >>>More
1. The charm of football.
The charm of football comes from its difficulty and inability to score goals. Because of these two characteristics, football is different from other ball sports, and it is also very different in the whole competitive sport. Technique, physical fitness, and on-the-spot play usually determine the outcome of a match. >>>More