I m going to be a father!! Hahaha!! What an unfortunate thing!!!

I sympathize with you brother haha.

Next year, your New Year's money is just right for your child!

There is a suspicion of abducting minors!!

How does it feel like in the movie "Precocious" People are pregnant at such a young age.

Can I give birth to you?

A bunch of guys who are pestering flowers.

You go to a far away place and live there. When the child was born, he sold it, and now he can make money by selling the child. If you don't believe it, forget it, if you do what I say, you will gain believe me?

You're handsome, crying, haha.

17 Huh? What a young mother, born and in the future, she will maintain her body shape well!

You're amazing! It's not forced!

Don't be this dad yet! It's too painful.

If the conditions are good, stay, but you have to be good to your wife, after all, you are only 17 years old.

Congratulations! But this kid may not see the light of day, poor thing.

It's only been a little over a week and you suspect that your girlfriend is pregnant? I admire you to death, you're not a woman, don't you know if you're pregnant or not? The first seven and last eight of menstruation are safe periods, and you should be fine.

Congratulations! Aren't you empty of joy? Try it well with paper.

He's still happy, alas...

You're only 17, can you really do it!!

According to reasoning, this mother can be a mother-in-law or grandmother before the age of 34, and her life is really good

Set: the length of A is 3x, the width is 2x; The length of B is 7y, the width is 5y, and the circumference is equal, so 2(3x+2x)=2(7y+5y) gives x:y=12:5

The area ratio is (6x 2):(35y 2)=(6 35)*(x y) 2)=864 875

So the area ratio is 864:875

In this kind of question, it can be assumed that the circumference of A and B is 120x, then the length and width of A are 36x and 24x, and the length and width of B are 35x and 25x, so it can be seen that the area ratio of A and B rectangles is 36*24:35*25

The workpiece experiences a frictional force mg to the right and has an acceleration g=5m s2. It is accelerated to the same speed as the conveyor belt by t=v a=1s. The displacement is = at this point. The displacement of the conveyor belt in this 1s is vt=5m

For the remaining 5m, the workpiece arrives at the same speed as the conveyor belt, and the time t2=5 v=1s is therefore 2s

The relative sliding length is.

(1) How long does the workpiece move from the left end of the conveyor belt to the right end, gently put a workpiece with a mass of m=1kg on it, the workpiece is subjected to friction and the same direction of movement of the conveyor belt, and the acceleration accelerationa= g=5m s 2 acceleration time t1=v a=1s acceleration displacement x1=v 2*t1= uniform displacement x2=l-x1=5m, uniform motion time t2=x2 v=1s t=t1+t2=2s

After 2 seconds, the workpiece moves from the left end of the conveyor belt to the right end.

The length of the workpiece that slides relative to each other on the conveyor belt.

x=vt1-vt1/2=