The power earth is broken

1. bitcoin is a kind of cryptocurrency based on decentralization, using peer-to-peer network and consensus initiative, open source, and blockchain as the underlying technology. The concept of bitcoin was first proposed by Nakamoto on November 1, 2008, and was officially born on January 3, 2009. Unlike all currencies, bitcoin does not rely on a specific currency institution to issue. It is generated by a large number of calculations based on a specific algorithm. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses cryptography design to ensure the security of all aspects of money circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity

warm tips:
1. The above explanations are for reference only, without any suggestions
2. Before investing, it is recommended that you first understand the risks existing in the project, and clearly understand the investors, investment institutions, chain activity and other information of the project, rather than blindly investing or mistakenly entering the capital market. Investment is risky, so we should be cautious when entering the market
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2. Take the free computing power jointly launched by the tenth power and computing earth, which mainly provides free computing power support for projects that need a large amount of computing power output. The computing power bank can provide idle computing power for personal devices around the world and provide computing power support for world-class scientific research projects, involving mathematics, physics, chemistry, life sciences, astronomy and other fields.

3. We need the mass m, angular velocity W, radius r of the earth and the distance between the latitude and the earth's center line r
G = GM / RR RWW

4. It's not like this.
in the interior of the earth, the law of universal gravitation should also be obeyed, just like in the interior of a star, it is the universal gravitation that proces the fusion reaction.
because the height of the earth's surface is different, That is to say, the gravity you calculate on the eastern plain is actually equivalent to the gravity below the horizon of the Qinghai Tibet Plateau.
in fact, it is not clear under what circumstances the formula of gravity can be used. But generally, Newton's formula of gravity should be used in our calculation problems.
if your question is an option of multiple-choice questions, Then you can think it's right

5. It's not like that
in the interior of the earth, the law of universal gravitation should also be obeyed, just as in the interior of a star, it is gravitation that proces fusion reaction

because the height of the earth's surface is different, that is to say, the gravity you calculate on the eastern plain is actually equivalent to the gravity below the horizon of the Qinghai Tibet Plateau

in fact, it is not clear under what circumstances the universal gravitation formula can be used. But in general, we should be able to use Newton's formula of universal gravitation
if your question is an option of multiple choice, you can think it is right

6. In fact, people will not let such a thing happen, because once someone controls 51% of the computing power of the whole network, the security and non tamperability of the system will be invalid, then the decentralization system of bitcoin will collapse, and the price of bitcoin will plummet or even return to zero, which is bad news for the participants of the whole network. Therefore, we will spontaneously control the distribution of computing power in the whole network, so as not to let one company dominate. Even when many people find that the computing power of a certain mine is too large, they will take the initiative to withdraw from the mine. Now the most powerful mining pool in the whole network accounts for about 25% of the whole network.

7.

Supercomputing Center's computing services are generally charged. You can go to the 10th power to learn about it. At present, the 10th power has launched free computing services

the tenth power cooperates with computing earth to launch the world's largest distributed computing resource computing power supply platform, providing free computing power support for projects requiring a large amount of computing power output. The computing power bank can provide idle computing power of personal devices worldwide, providing computing power support for world-class scientific research projects, involving mathematics, physics, chemistry, life sciences, astronomy and other fields

so far, the peak computing power is as high as 100p, which is equivalent to the computing power of tianhe-2, the world's fourth largest supercomputer, and can meet the needs of all computing power projects on the market

8. The problem is that gravity decays faster with distance. As like as two peas as like as two peas, we first use the economic principle of the oak razor, assuming that the other universe's other parameters are exactly the same, and the laws of physics adopted are exactly the same. So how fast does gravity decay? Let's assume that gravity decays twice as much as it does now, as in four-dimensional space, every time the distance doubles