A difficult question 30, a difficult question

Look at your friends first, everyone is about to hang up. Seeing the last one is a must, and your father-in-law is fine, at least not immediately. In addition, the money is still earned by people.

Look brother, brother danger point.

After reading the brothers, borrow some money by the way, look"Dad'..

Big brother, it is recommended that you borrow money, or you will pay money at home, if you have the courage and confidence, it is highly recommended to steal the bank account number or rob and steal.

Brothers. Go to your father-in-law and tell the truth, that old guy would like you if he was a good man, if he was virtuous and rubbish, he wouldn't let his daughter associate with you, what are you doing dumping him like that?

One man and two brothers.

This is ... You've had a car accident too...

Don't get too serious...

Speechless, go to my wife's place, really, go to my wife immediately after going to see a brother, it's too late, your wife will have ideas, understand, there's nothing wrong with listening to me,

You have to go, since you said that he is here and you are a friend, if you don't go, do you think it is appropriate???Your girlfriend is about to get engaged, and you haven't even seen your father-in-law, you can really do it. You're only 300 yuan, how can you get married?Just kidding!

This question is like - mother and lover fall into the water together, who will save first?

It's better to believe in others than to believe in yourself and be your own God!

Man is always in the process of choosing ...

I went to see my friends first, because I was about to hang up, and then I went to see my girlfriend's father, because I could still drag it.

This will be gone if you turn off System Restore, but it is recommended not to turn off System Volume Information

This is a product of Office or automatic updates: MSOCache. But note: it should be in the system disk, which is the usual C disk.

Don't worry about it: recycler

Go into safe mode to delete, open your task manager to see if they are running, turn them off and delete them again, and you don't delete too much at once, a little bit of deletion, sometimes the computer will remind you to start up before deleting, then you can start again.

These are all system folders, please do not delete them.

Oh, the running program can't be deleted.,It may be a virus.。

The original folders of the system, in every partition, they belong to the system files, and they are generally hidden, maybe you turn on the hidden system files option of the folder option, delete them will still have.

With the file shredder in Window Optimizer, you can solve the files that cannot be deleted in one fell swoop.

The last two are systemic things, the first one is not clear.

Be polite.

Dear Customer:

I am an employee of **company, and I mistakenly traded my company's computer worth 10,000 yuan with your company on *month*. Because the original price of this computer is 20,000 yuan.

I am willing to take all responsibility for my negligence, and I beg your company to understand and return the difference to our company.

Thank you (add yourself for other details).

An employee sells a 20,000 yuan computer to a customer for 10,000 yuan, and the company asks the employee to write a letter to the customer and ask the customer to return the remaining 10,000 yuan. How do employees express urgency in writing!!

Why is there no comma? You're in a hurry, and others can't help you if they can't understand it. And how much more to write?

Due to my mistake on *month*, I have not been able to sell the computer to you correctly in accordance with your company's requirements, which may cause inconvenience to you. We hope that your company will be able to refund the difference in the price of the computer. We apologize for any inconvenience caused.

Finish. Brother's last wish, it is your bounden duty to take care of your sister-in-law and children. But it doesn't have to be a sister-in-law, everyone can understand this.

If your girlfriend proposes to break up because of you, you shouldn't have any regrets, and if your girlfriend doesn't dislike it, then she is admirable.

A family with a problem.

It is both sides that take care of the non-care, and the dead brother is very selfish.

If you want to give it to someone, they don't have to.

Caregiving also does not need to be married to take care of it, unless it is sex care.

That's too unfair for his girlfriend.

Besides, did he ask his sister-in-law what she thought?

You can't make your own decisions.

Besides, don't get married.

You can also take responsibility.

Why do you have to get married?

Taking care of their family doesn't mean marrying his sister-in-law, he must have misunderstood, it should be the material care of life.

So what to do, alas.

It's so pitiful, I don't think I can do this, I can't marry his sister-in-law.

You don't have to marry your sister-in-law, you can take care of the family and your sister-in-law with your girlfriend.

Just tell your dad that she is the one who has lived with you for the rest of your life, so be reasonable.

Haha, you're so funny, don't you think you're ugly and your dad thinks she's ugly!

At the age of 7, you should pay attention to your child's behavior modification. Guide him positively, don't shout, criticize, accuse him. It will be corrected slowly.

Gently use force to remove his hand, no explanation, no accusation, slowly fine,

There are three ways to solve this problem.

The first solution (calculated according to the original definition of work):

Let the tensile force f act on point A on the rope, and the object moves under the action of tensile force d=2m, the drawing is omitted) According to the cosine theorem, the displacement of point A is known.

s=(d^2+d^2+2*d*d*cos37)^(1/2)

2*d^2+2*d^2*cos37)^(1/2)

2d^2(1+cos37)]^1/2)

The angle between the displacement s and the tensile force f.

The work done by the pulling force.

w=f*s*cos =f*s*((1+cos2 ) 2) (1 2) (half-width formula).

f*[(2d^2(1+cos37)(1+cos37)/2)^(1/2)

f*d*(1+cos37).

The second solution is based on the functional relationship, where the energy input to the object is equal to the rope that connects the object to the pulley.

The work done on the pulling force f1 of the object. And this work is ultimately the work of pulling f, because of the end of energy.

** is a force object that exerts a pull force.

F1 is the resultant force of f and the rope tension f of the horizontal segment.

size f1=(f 2+f 2+2*f*f*cos37) (1 2).

2*f^2+2*f^2*cos37)^(1/2)

2f^2(1+cos37)]^1/2)

The direction is in the horizontal direction.

37 2 degrees of angle.

The work done by the resultant force f1 on the object.

w=f1*d*cosθ

2f^2(1+cos37)]^1/2)*d*(1+cos37)/2)^(1/2)

f*d*(1+cos37).

The third solution is replaced by equivalence:

As the second solution says, in the final analysis, there is only the work of pulling force f, now we cancel the pulley and replace the rope across the pulley with a force f1 at an angle of 37 degrees to the horizontal direction and a force f2 in the horizontal direction (f1=f2).

(both magnitude and direction,) these two forces together pull the object forward to move d d=2m, then these two forces do.

The total work is equal to the work done by the force pulling the rope in the original question. The total work done by the two forces is calculated below.

w=w1+w2=f1*d*cos37+f2*d

f1*d*(1+cos37)

There is no need to explain, the more you explain, the deeper the misunderstanding, let it be, just have a clear conscience, thank you.

Hehe, then don't worry about it, it will naturally fade after a long time, and you won't be asking that question tightly.

Why do you care so much about what they say? Do you have to do something to fulfill their imagination when they say that?