Joke Collection Website - Bulletin headlines - Rewards for the following questions
Rewards for the following questions
The air buoyancy of the balloon is1.29×10×10 =129 Newton.
The gravity of helium in the balloon is: 0.18×10×10 =18 Newton.
The maximum weight that a balloon can lift a slogan is (129-18-20) ÷10 = 9.1kg.
The pressure of bison on sandy land is 2000× 10=20000 cattle.
The pressure of bison standing on the sand is: 20000÷4÷0.025=200000 Pa.
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