Xueba, I beg you to go and escort him quickly!

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"VPy=(MVAy+MVBy+MVCy)/3m=0, this is the 17th."

"At this time, the coordinates of the center of mass of the system are..."

"..."

"Then ball B collides with the baffle before ball A, and from the above related formulas we get α>arctan (3/(1+π)), that is, α>36."

After finishing speaking, Xu Heng said, "Professor, that's it, you should have better ideas for solving the problem!"

"Time is tight, so I only have these two solutions."

"So, I also ask the professor to enlighten me."

One shock after another.

Helpless is also one wave after another.

There are two ways to solve the problem!

Do you think I will be the third?

I'm one of a kind!

On Xu Heng's side, "???"

"Professor? Is the signal bad? Forget it, I'm going to class soon, professor goodbye!"

pat!

After hanging up the voice, Fang Zhonggui dared to take a big breath.

According to Xu Heng's idea of solving the problem, Fang Zhonggui sorted it out.

I haven't put down the pen yet...

Xu Heng sent a message, "Professor, is there any more?"

Puff...! ! !

Fang Zhonggui wanted to die already!

Is this guy a bottomless pit?

Why do you want more!

Fang Zhonggui's first reaction was, "No! No more!"

Xu Heng, "Then...Professor, can I ask your professor friend for some questions?"

"Chemistry, mathematics, whatever..."

and many more!

math……

Don't I have the contact information of Professor Zhu Tiesen? You can try to ask for a few questions!

But soon Xu Heng denied himself.

My mathematics and Chinese are all evaluated by signing in, one SS, one SSS, and the rewards I get are even higher...

"Hey! Let's forget it!"

"Don't get into trouble if you don't find a topic to pass the time by then."

"Be low-key, be low-key."

The bored Xu Heng opened the group.

Coincidentally.

The question Fang Zhonggui sent to Xu Heng was being discussed in the group.

Xu Heng, "???"

"Examination questions? Impossible! How is this possible...!"

Wang Hanshan and the others said, "!!!"

"This senior in the junior year can't...Xu Heng..."

Xu Heng, "Ah? Don't fool me! I always feel like you are playing me! How can this question be so difficult!"

Everyone watched, wanting to cry but not crying.

"Hey……"

What can I say!

In your eyes, Xu Heng, the question we have racked our brains to no avail is so simple?

"Xu Heng, be a human being! I beg you, take away your supernatural powers!"

"Really! Xu Heng! This question is really difficult!"

"There are more than 200 people in the group, I don't think any one can make it! Even if it can be done, it will take a long, long time! It is even more impossible to get it done in ten, twenty, ten minutes like you, and, There are two ways to solve the problem!"

Xu Heng, "."..."

After leaving the group, Xu Heng looked at the question Fang Zhonggui sent to you, frowned again, and asked himself, "Is it really that difficult? It shouldn't be..."

Afterwards, he shook his head, "Don't think about it, let's brush up a certain sound..."

The temporary cessation allowed Xu Heng to return to normal.

But everyone in the group was very uneasy.

And there are more and more people in the group.

At the end of the day, there were more than 300 people.

The group owners panicked, more than 90% of them are students from Peking University.

Among them... there are a few classmates from Tsinghua University.

A Tsinghua student named Fu Xidong joined this group with his dorm roommate out of curiosity.

"I heard it's a fan group of a sophomore in high school!"

"There are quite a few people at Peking University."

"Hehehe! Peking University is living more and more going back! It's a fantasy for a high-achieving student from Peking University to become a fan of a sophomore student."

And their purpose of joining the group is to find out.

They wanted to see if it was a joke or a clown.

Looking at the people in the group, there are 300.

"The fan base is quite large!" Fu Xidong smiled and checked the overall situation in the group.

Group files, group photo albums, etc.

Under normal circumstances, the group owner will organize the relatively difficult topics sent by the students in the group and put them in the group files or photo albums, so that newcomers or others can view them.

During the inspection process, Fu Xidong and the others discovered the questions that Wang Hanshan sent in.

For a moment, Fu Xidong was stunned.

His roommate came over, "???"

"What's wrong with you, why are you stunned?"

Fu Xidong handed the questions to his roommate, "Look, aren't these questions very good?"

The roommate took a closer look and couldn't help but gasped.

"interesting……!"

The two of them didn't have class all afternoon, so they studied these few questions.

The first question is okay, the second question about special relativity, they took a little time, as for the third question...

"Hiss...do you want to ask the seniors?"

Fu Xidong was a freshman this year. When he saw this question, Yi (Nuoma Zhao) was at a loss.

After deliberating with each other, the two decided to find a familiar senior, Zhou Moyan.

"Senior, excuse me, are you there?"

Two people are very humble.

After all, this Zhou Moyan is from Tsinghua Yao Class, and he is a well-deserved physics genius.

Domestic geniuses are in Tsinghua, and Tsinghua geniuses are in Yaoban.

The current domestic echelon of education and other levels is junior college, three, two, one, heavy, , 985, Everest Project, C9 alliance. The higher the level, the stronger the strength.

Academies that can enter the C9 alliance are basically the top existences among the millions of students in the Celestial Dynasty.

And Tsinghua University is among them.

However, in Tsinghua University, there is another place that is more selective, and that is Yao Ban!

It is said that the students in the Yao class are afraid that their Ph.D. supervisors will not be able to teach them well, so foreign famous schools will accept their resumes as soon as they see them!

Zhou Moyan replied, "Yes."

Fu Xidong, "Senior, we want to ask you a question!"

Zhou Moyan, "Question."

Fu Xidong forwarded the topic to Zhou Moyan.

After that, the chat between each other is gone.

After half an hour.

Zhou Moyan, "The motion theorem of the center of mass, but for you, it's beyond the outline."

Zhou Moyan cherishes words like gold, and his words are concise and to the point.

He doesn't want to spend too much time talking.

He is more obsessed with his own research.

Fu Xidong, "Yeah! I understand, senior. Thank you."

Seeing the message sent by Zhou Moyan, the two of them looked at each other, and couldn't help but gasp.