Chapter 429 Who is the professor?
When the students around him saw the angry expression of the physics professor, they were stunned and looked at Dabing and the fat man. When Dabing came in, the physics professor was already a little angry, but he didn't say anything.
After all, Dabing is his student. Even if Dabing just pays money to get a diploma here, he is not qualified to say anything. This is a university, not a middle school, nor a primary school. The physics professor may be taking Dabing as a child.
But even if Dabing didn't study and lie on the table to sleep, it would be fine. Dabing was still talking to another classmate next to him, which made him very depressed in the lecture. The physics professor had already turned his eyes to Dabing and Fatty several times.
But Dabing and Fatty actually ignored him, so that the physics professor was completely crazy. He couldn't help but plan to drive the two out. When the fat man heard this, he was like a child who made a mistake and hurriedly stood up from his seat.
stand up.
However, Dabing sat there quietly. These days, Dabing had already finished learning the university courses and even learned the languages of dozens of countries. Dabing found that since the last time he recovered his memory, his memory ability became very strong.
As long as he wants to learn something, he will learn it at once, and it is the kind of one who can understand everything. Dabing can't find a reasonable explanation for his learning ability and his super memory ability. "Professor of physics, you have it.
What's the problem?"
Under the eyes of everyone, Dabing raised his head and looked at the physics professor on the podium. When the physics professor on the podium saw Dabing ask him this, three black lines suddenly appeared on his forehead. What are you having?
Is this guy provoking?
Dabing didn't care about the angry expression on the face of the physics professor, and Dabing didn't want to make things difficult for the physics professor. He just wanted to come to the school to have a good sleep, and that was nothing else, but the physics professor didn't think so, he would
Dabing regards the young master of a big family. Dabing's lazy attitude turned even more arrogant in his eyes. The physics professor said with a gloomy face, "Class Lai Dabing, if you decide that I'm not good at teaching, you can leave directly.
, don't have to be here!"
"Professor, don't be too slight on yourself. Your lecture is really good. I listened very seriously. But I have fully learned the knowledge you are talking about, so I..." Dabing said seriously.
The physics professor's face became increasingly ugly, and this guy was rude! But soon the physics professor returned to his calmness and said, "Since you said you learned what I taught in this class, then explain to me, what I said now
Examples of
When the people around them saw the physics professor say this, they were stunned. The fat man standing beside him hurriedly closed his mouth and didn't even dare to say anything, but no one expected that at this time, the soldier actually stood up and walked to
On the podium, he said.
"Professor, you have taught for so long. Now you have a rest and sit down. No matter what you ask, I can answer you. I will be a teacher in this half class." Dabing was bored, so he planned to pretend to be a little bit.
The teacher who passed the time for half a class.
The physics professor never thought that Dabing was so arrogant, he answered as soon as he answered, and even taught classes. Under the eyes of everyone, the physics professor seemed not angry, but smiled and said, "Okay, as long as you answer me."
A question. "
"A acrobat can throw five balls one by one to a height of 3.0 meters, so that all five balls can be kept in the air. First, determine the time interval for two consecutive throws, second, find out when a ball is about to be about to
When it falls on your hand, the height of the other few balls can be ignored. Answer my question, if it can be correct..."
The fat man standing behind his face was full of helplessness. He thought to himself, Brother Bing, even if you are bored, you don’t have to play like this. Physics is not so easy to learn. If you go up now, you will teach the whole class. This is not yourself.
Shooting the foot with a stone?
But no one expected that before the physics professor could finish his words, Dabing picked up the chalk without thinking, and said, "One, for simplicity, set the height of the acrobat's hand to 1m, one, it is easy to get the ball
From being thrown to falling, 2√ (4m/g) is about 1.277s. After he throws the first ball, he has to throw 4 more. Therefore, the time is divided into 5 parts, which means the interval is 0.255s
. ""
When they finished speaking, Dabing had already written down what he had just said on the blackboard. When everyone saw this scene, they couldn't help but breathe a breath, but at this moment, Dabing continued, "When throwing it out,
The speed is easy to know as 6.26m/s, so the height is calculated at 0.255s as the time interval: (6.26m/s-(9.8m/s^2)*0.255s/2)*0.255s+1m=1.28m+1m
=2.28m, the following can be compared to 2.92m, 2.92m, 2.28m. I wonder if what I said is right?"
After saying that, the series of methods were written on the blackboard by Dabing. When they saw Dabing's answers on the blackboard, the students present couldn't help but be stunned. Several students began to take out pens and calculate in the notebook whether Dabing's answer was correct.
Then, then
But at this time, the physics professor who was sitting in a rational manner was completely speechless. He stared at Dabing widened his eyes. In fact, he did not pass this question just now, but a question he made up temporarily based on the course he mentioned earlier.
In less than half a minute, the physics professor also calculated the result. His eyes were full of surprise and he looked at Dabing, thinking in his heart, does this kid really understand these boring and boring physics, because Dabing’s answer was completely correct!
The good boy, he actually knows physics and can give accurate answers in such a short time. This surprised the physics professor, but because of the soldiers' exposure, he became interested in the soldiers.
Asked.
"Yes, Lai Dabing, you answered it very correctly. Next, you are answering this question. The particle moves forward along the x-axis, and the acceleration a=-kv, k is a constant. Suppose the velocity is v0 when starting from the origin. Find
The equation of motion x=x(t).”
Dabing heard a question from a physics professor, and a rare smile appeared on his face. At this time, outside the classroom where Dabing was, several teachers and classmates passed by and saw Dabing standing on the podium to give a lecture. The physics professor asked the question below.
They stopped curiously and looked at all this in confusion. They wanted to see what happened. The soldier stood on the stage with a calm expression on his face and smiled, "Professor, I think you called me wrong, now half of you
I am a teacher in class, what should you call me?"
No one expected that Dabing was so fierce that he actually asked the physics professor to call him a teacher. Even the teachers and some classmates outside the classroom couldn't help but push the door open, walked into the classroom, and sat behind the classroom.
Row position.
They were very curious about what kind of virtues and what could this physics fight to call him a teacher. The physics professor never thought that Dabing would do so randomly, but he was not angry and said with a smile, "Then please Teacher Lai for
We answer this question.”
The students present saw that the physics professor really called Dabing the teacher. Three black lines appeared on their foreheads. Lai Dabing was playing a bit big, and he was a professor!
However, Dabing ignored the shocked gazes of those people. He picked up a piece of chalk and said lightly, "Student Huang, your question is very simple. Please listen to me to help you solve it."
Hearing Dabing's words, three black lines popped up from everyone present's foreheads. Their eyes were full of surprise and stared at Dabing's direction. Dabing called the physics professor Huang. I'm afraid no one in Guangcheng University is better than him.
Being strong?
Under the stunned expression of everyone, Dabing quickly decomposed, "According to the question, there is an equation a(t)=v'(t)=-kv(t), and the solution is v(t)=e^(-kt)+
c1, and when t=0 v=v0 gets c1=(v0)-1, so v(t)=e^(-kt)+(v0)-1, integrate v(t) into x(t
)=e^(-kt)+[(v0)-1]t+c2, because starting from the origin, s=0 when t=0, get c2=-1, so x(t)=e^(-kt
)+[(v0)-1]t-1, Classmate Huang, I wonder if what I said is right?"
After hearing Dabing say it, they calculated Dabing's answer this time. Even the physics professor was silent for a while, secretly calculating the answer Dabing said. Soon the physics professor smiled bitterly, "You
The answer is correct.”
Other students who are good at physics have not finished their calculations yet. When they heard the physics professor’s words, three black lines suddenly appeared on their foreheads. The answer is correct? Could it be that the soldier in front of them really knows physics?
The speed of the soldiers' answers in an instant completely shocked them. How much knowledge of physics is required to answer so quickly? Even people with better physics will take ten minutes to answer.
But this Lai Dabing actually answered these two questions in an instant, completely shocking the students who thought they were very good at physics. They stared at the soldiers on the stage in a daze. At this time, they didn't know what to say.
Then, then
Even the physics professor was the same. His eyes were full of surprise and stared at Dabing. This guy seemed not as bad as he imagined. Dabing's extraordinary reaction ability also aroused the physics professor's curiosity.
Then, then
He wanted Dabing to ask a few questions again, slowly from shallow to deep, and even some questions went beyond the scope of the university. Even everyone present did not understand what Dabing and the physics professor were talking about, but they asked each other.
answer.
Seeing Dabing explaining on the podium, everyone present was speechless, and even the other teachers were shocked. At this moment, they had an illusion, as if Dabing standing on the stage was a professor, and the professor in the audience was
student…
The more the professor of physics asked, he became more and more interested. He even began to discuss with Dabing and asked some topics that other students could not understand at all. The students felt a little confused at this time, as if there was not a professor and a student in front of him, but two
The famous professor was discussing the problems of physics, and even talking. The two talked about the top ten problems in the world physics. Dabing could still easily answer, explain, and even theory, which made the students present completely dementia. He was really just
Chapter completed!