My Identity As A Schoolmaster Has Been Exposed

Chapter 167 I didn’t see anything!

In the early morning of the next morning, Lin Mengjiao brought her notebook to find her, because yesterday she encountered some questions that she didn’t understand.

She accidentally studied until 11 o’clock last night. Although she was sleepy when she was woken up by the alarm in the morning, she persisted. After all, it was a very happy thing to see Xu Cong. Little looking forward to it.

After she came to Xu Cong’s house, she went straight to his bedroom, and immediately went to the bedside to gently wake up the boy who was still sinking in his dreams.

“Get up~~~Big slacker!”

The voice was gentle, soft, and there was a trace of hair. At this moment, she squatted and whispered in Xu Cong’s ear, with infinite love in her beautiful eyes.

Xu Cong heard someone call himself, then slowly opened his eyes and asked, “What time is it?”

“It’s dawn, it’s almost six o’clock.”

Six o’clock?

Or “Quick?!

Xu Cong turned black in an instant, and immediately sat up, grabbed Lin Mengjiao, and said to her, “Come on, take off your shoes.”

“???”

Lin Mengjiao was confused by his operation, and asked blankly, “What are you doing? Xu Cong, what are you doing!”

However, Xu Cong did not answer her. Since you don’t do it yourself, then I will help you, so he started to do something to Lin Mengjiao.

slippers!

Throw it into bed!

Then……

Lin Mengjiao felt a little flustered at this moment, and at the same time she didn’t understand what he was doing: “???”

what happend?

What are you doing?

But soon she discovered that her body had actually entered Xu Cong’s arms in a ghostly manner. She swears that this was definitely not her initiative.

After Xu Cong finished all this, he slowly closed his eyes, somewhat contented, and said softly: “It’s still comfortable to sleep with me, and accompany me to sleep.”

Before she could react, Xu Cong fell asleep again after a while.

But he fell asleep as soon as he fell asleep, and his hand was not honest, where would he put it?

Still touching…

Lin Mengjiao’s face was red to the root of her ears, and she said in Martian: “%￥#@@￥”

Do evil!

Why do you like such a big lazy bug, it’s still a stinky mango!

Lin Meng’s petite face suddenly swelled, making it even more lovely.

But she didn’t mean anything, she couldn’t get rid of his hand…

What’s more, she was a little sleepy when she woke up so early, hey, she sighed, and soon fell asleep.

It was nine o’clock when the two woke up together. Lin Mengjiao curled up under the quilt and looked at Xu Cong, her eyes full of resentment.

Xu Cong yawned, looked at her with a weird look, and asked, “What’s wrong?”

“Ask it knowingly!”

She blushed, quickly got out of bed and picked up her notebook, and said to Xu Cong: “You can tell me about the movement of celestial bodies. This is the type of question I have made more mistakes.”

Xu Cong looked at Lin Mengjiao and looked at her seriously, and asked with concern: “What time did you study last night?”

Lin Mengjiao said seriously, “Eleven o’clock, what’s wrong?”

Xu Cong did not continue joking with Lin Mengjiao. If he was joking at this time, then he would really not be able to be a human being.

He also knew in his heart that the reason why Lin Mengjiao worked so hard was all for him, and Xu Cong would naturally not dispel her enthusiasm, but would encourage her instead.

So he gave Lin Mengjiao a thumbs up, and at the same time, he leaned close to Lin Mengjiao’s delicate ear, and said softly, “Silly wife, you are great now!”

Silly wife!!!

Silly wife???

“Who, who is your silly daughter-in-law! Don’t talk nonsense! Xu Cong! You stinky mang, you big villain!”

Shy!

Lin Mengjiao used her notebook to cover her face, not daring to look at Xu Cong.

Xu Cong smiled, picked up Lin Mengjiao’s notebook and looked it up indifferently, and then said, “Listen carefully.”

brush!

Lin Mengjiao immediately converged her mind and raised her ears.

“F cited=F direction, G(Mm/r2)=m(v²/r)=mrw²=mr(2T/T)²=ma, you must keep this in mind.”

“Through this, we can get V=under the root sign (GM/r), w=under the root sign (GM/r³), T=2Tt√(r³/GM), a=GM/r².”

“According to the above, the larger the radius, the smaller the linear velocity, the angular velocity and the acceleration also decrease. Only the period T increases, which can be seen at a glance.”

Xu Cong wrote, Lin Mengjiao looked at it, and finally Xu Cong said, “So, you can get a formula.”

Lin Mengjiao looked up at him in surprise, and asked, “The formula?”

She blinked her big eyes with a blank face, which was completely different from what she had racked her brains to think yesterday.

In addition, she made up her mind in the morning as to how Xu Cong would teach her, and from which way she would teach, but she was wrong.

Lin Mengjiao looked at Xu Cong like a sponge, eager to absorb the moisture of knowledge!

Xu Cong, “The high orbit has a low speed and a large period, and the low orbit tells a small period. The orbit is r, where the speed is linear velocity, angular velocity and acceleration.”

“do you understand?”

This is a point of knowledge, originally it was fine to memorize it by rote, but Xu Cong still gave her a list of public notices, so that she could more intuitively understand why this is the case.

Lin Mengjiao nodded. Compared with before, her understanding had improved a lot, as if she had suddenly opened her mind and understood faster and faster.

Xu Cong saw that she understood this, so he continued: “Okay, after I understand, let’s look at the following…”

Lin Mengjiao kept nodding, and at the same time hummed and said, “Hmm.”

“Expand what I just told you. We launch a geostationary satellite…”

While on the bed, Xu Cong was telling Lin Mengjiao. Zhou Xiuyun, who was passing by, stood in front of the door and listened. She looked happy, and then walked away.

“From the low orbit first, the ignition accelerates to the high orbit, and the ignition accelerates again to become the same synchronous orbit as the planet.”

“Every time the ignition is accelerated, the function of the satellite becomes larger, which comes from the chemical energy of the fuel.”

“So, the high orbit, the low speed and the big cycle, the big machine is big and the momentum is small!”

Lin Mengjiao heard some anxious questions: “I can understand the big picture, what about this situation?”

Xu Cong glanced at her, then said: “Height!”

Lin Mengjiao thought for a while, she seemed to understand, so she nodded.

“Because the speed is small, the high orbit is low, so the kinetic energy is also small.”

After talking about this, Xu Cong continued to open Lin Mengjiao’s notebook and asked her: “You recorded this question, so do you know the answer?”

“Comparing the synchronous circular orbit and the near-Earth circular orbit, the answer is ready to come out?”

Lin Mengjiao’s eyes lit up and she said in surprise: “Yes, so choose A!”

“It’s too fast! After reading the questions, there is no answer for half a minute! Xu Cong, did you answer the questions like this? It’s so cool!”

With bright eyes, Lin Mengjiao stared at Xu Cong.

The corner of Xu Cong’s mouth rose slightly, and said to her: “As long as you know a lot, there are thousands of ways to answer questions.”

Lin Mengjiao was happy. Before looking at this kind of topic, the first one was two big ones, and it wasn’t necessarily right to buckle there, but after Xu Cong said that, she suddenly opened up.

“You are awesome! Mua~”

Holding Xu Cong is just a bite.

But at this moment…

Squeak!

The door was opened.

Zhou Xiuyun came in, and she was a little dumbfounded when she saw the red lips staying on her face, “Uh…”

“My fault! My fault! Sorry!”

“I see you are not up, I prepare breakfast for you, I want to bring you in, I let this, I went out, I didn’t see anything.”