Xueba God-level system

Before Wang Xiang finished speaking, he had already rushed out.With an initial velocity of v=5s, he moves in a straight line with a uniform acceleration of a=2s2. In a short while, Wang Xiang has arrived near the toilet of No. [-] Middle School, and he will leave the school gate after turning a corner.

To chase or not to chase, Niu Zihao was extremely confused.Let's chase, what if I can't catch up, won't it make me run for nothing.Don't chase it, that five yuan beef noodles and three yuan eggs are not in the soup.Oh, they were originally soaked in the soup, Niu Zihao suddenly realized.

已知王祥的初速度v初=5s，加速度a=2s2，牛梓豪目测了一下王祥移动的距离变化量△x=300根据加速度公式△x=at2可知，t=±√△x/a，排除掉一个负值答案。则时间t=√3002s2=√150s，牛梓豪在这里做了一个简化的处理，将√150s直接约等于√160s=4√10s。很明显4√10要小于5s，牛梓豪要想追上王祥，就必须要在4s内行走300距离。

According to v=s/t=3004s=75s, Niu Zihao must travel 75 meters per second, and only after 4 seconds can he catch up with Wang Xiang.

75 meters per second, this is not a speed that humans can achieve.So Niu Zihao had a whim, and used the Xuebashen level system to set the time to 4 seconds and the speed to 75s.Only a "whoosh" gust of wind flashed past Niu Zihao's ears, and Niu Zihao started his 4-second campus tour.

"Did you see anything flying past?" asked a female teacher in a physics class.

The teacher next to the class just lowered his head and played Kuaishou, but saw nothing.

Just as Wang Xiang stepped out of the No. [-] Middle School in Anqin County, Niu Zihao chased him from behind, frightened Wang Xiang pale.One didn't stand still and almost fell to the ground.

"Niu Zihao, why are you so aggressive with a bowl of beef noodles? You can run faster than Liu Xiang." Wang Xiang was out of breath, gasping for breath.

Niu Zihao smiled helplessly and said, "Wang Xiang, in fact, this is not a matter of a bowl of rice, but a question of one's quality and morality. I don't know if your three views are correct or not, your outlook on life, values, Social view. But I can tell you very clearly that your ideology and morality have been distorted."

After talking a lot, Wang Xiang was confused.

In fact, it was Niu Zihao who misunderstood Wang Xiang, and he wanted to leave the campus quickly out of good intentions.This not only can occupy a good seat, but also eat mamak fragrant.If there is a delay of a few more minutes, it is estimated that there will be a long queue to buy tickets.

Under Wang Xiang's repeated explanations to Niu Zihao, the two talents cleared up their previous suspicions, and this page was turned over.

When I came to the tip of the tongue beef noodle restaurant near No. [-] Middle School, the owner inside greeted every customer with enthusiasm.

"Two bowls of beef noodles, four eggs, and two plates of side dishes. I'll give you 20 yuan. You don't have to look for it." Wang Xiang said calmly and calmly. It was obvious that he was a frequent visitor here.

After the cashier's sister finished the ticket, she thought about it, what is it that you don't have to look for it, and you don't look for it at all.I thought he was lavishing money, but I didn't expect that he was trying to make up a whole number, so he was speechless.

在王祥给小姐姐接钱的一瞬间，牛梓豪利用学霸神级系统粗略的算了一下。两碗牛肉面2x5+四颗鸡蛋4x1+两盘小菜2x3=10+4+6=20(元)，刚好20块钱，当然不用找了。

After inquiring about Niu Zihao's noodles, Wang Xiang said to the noodle master, "Two bowls of two thin noodles, and a little more chopped green onion."

"Okay." The ramen chef replied enthusiastically.

At the corner of the wall, Niu Zihao was already sitting down.The side dishes are ready, and the red jujube tea is also poured into the cup by Wang Xiang.Everything is ready, only a few details are owed.

……

The beef noodles that were just out of the pot were a little hot, like burning fire, and like being resistant to heat and drought.After disassembling the disposable chopsticks, the eggs that had been peeled were dipped into the soup by Niu Zihao with chopsticks.

Pour some vinegar, Niu Zihao picked up a pinch of noodles and began to taste it carefully.Eating and eating, Niu Zihao tasted the taste of his hometown, which was strong and pure.

Seeing that Niu Zihao was eating with relish, it was hard to swallow at Wang Xiang's side.Why does Niu Zihao eat beef noodles, it feels like he is enjoying a sumptuous dinner.In short, Niu Zihao gave Wang Xiang a very strange impression, and I felt that this person was a bit confusing.

How can you just eat beef noodles, how boring!Unable to bear the loneliness, Wang Xiang went to the bar and ordered a glass of iced Coke.I heard that on rainy days, cola and beef noodles go better!

Unexpectedly, when Wang Xiang returned to his seat again.He found a person, a girl, who was sitting behind Niu Zihao.

It turned out that it was the senior sister who was playing table tennis in the physical education class. It was really fate.Wang Xiang was pondering, but fortunately there was another Niu Zihao eating noodles between senior sister and me.If I really want to be with my senpai, my palms will be sweaty.

Wang Xiang's bowl of noodles is about to be eaten up, so he wants to spend more time with his senior.Wang Xiang changed his strategy and chewed slowly one by one.

Niu Zihao was eating and eating, and suddenly a small story flashed in his mind, it was a legend of Archimedes.

According to legend, in 245 BC, King Hernon ordered Archimedes to identify a crown.King Henon gave the goldsmith a piece of gold to make a crown of pure gold.Although the finished crown was as heavy as the previous gold, the king suspected that the goldsmith had adulterated it.

He ordered Archimedes to determine whether the crown was pure gold, but was not allowed to destroy the crown.This seems impossible.In the public bathroom, Archimedes noticed his arms floating to the surface.At this moment, a vague idea flashed in his mind.He dropped his arm completely into the water and relaxed, when it came to the surface again.

When he stood up, the water level around the tub dropped; when he sat down again, the water level in the tub rose again.

He lay in the tub, the water level was higher, and he felt lighter.When he stood up, the water level dropped and he felt heavier.It must have been the upward buoyancy of the water that made him feel lighter.

He put roughly the same size stone and wood into the tub at the same time and immersed it in the water.The stone sank into the water, but he could feel the stone lighten.Also, he had to press down on the block to fully submerge it.This shows that in the case of sinking, the buoyancy is related to the displacement of the object (the volume of the object), not the weight of the object.Under the same mass, how much an object feels in water must be related to its density (the mass of the object per unit volume).

Most importantly, Archimedes discovered the principle of buoyancy, which states that the buoyant force of water on an object is equal to the weight of the water displaced by the object.

From this, the Archimedes principle formula can be drawn: f float = p liquid gv row.

According to the formula, Niu Zihao made many complicated assumptions in his mind before finally calculating the buoyancy of the beef noodles.

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