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In Ha Noi, the number of death by traffic accident is considered as large as the number of death by plague. There's about more than 30 people die everyday. With the traffic conditions in Ha Noi, accident is object to happen. The roads are too narrow to travel easily. Moreover, many pot-holes can appear everywhere to threaten the goers. On the roads, there're sometimes the illogical roundabouts. They are not only useless, but also make the traffic more chaotic. To solve this problem, we only have one way, it's improving the road. However, it is impossible for the government to widen the roads because of limited land. Whenever theroads are repaired, the traffic is more dangerous with the unfinished structures. People still travel on the repairing roads, and the roads are more and more narrow. We also can build the tunnels but it is very costly. Viet Nam has to borrow money from other countries and no one knows when the government can pay it back. As you know, Ha Noi is a monsoonal tropical country, it has a lot of rain every year. During the rainy season, the roads are flooded because all the waste pipes are stuck by rubbish and become very dirty.

In addition, the tense of Ha Noi people is poor. The roads in the cities are choked with so many vehicles such as motorbikes, bicycles, taxies, buses, cyclos and pedestrians because people do not follow the laws well. They even don't obey the traffic lights or signs. Children are taught about traffic laws while adults are breaking it. Now, the government gives many new strict laws to improve the present posture. Polices are more active than they used to. Everyone travel on

motorbike wears helmet naturally without any enforcement. The traffic is better and better day by day.

In conclusion, with many measures now, the traffic in Ha Noi will be good one day. The poor conditions Ha Noi can solve this problem by the development of economic.

24 tháng 1 2021

What should we do when we go out?

-Yes, we have to follow the road signs and the traffic safety rules. There are five types of road signs. First one, the direction sign. This type leads you to go to the right side of the road or somethings, but most are lead you to go to the right side. The second is danger sign. This type shows you the danger ahead and when you saw this sign, you have to becareful. The third one is prohibition signs. In this type, if you don't follow the sign, you will maybe in danger. The fourth type is command signs. You have to follow it or maybe you will be like you don't follow the prohibition signs. The fifth and also the last one type is side signs. This type is not very common and I don't know about it very much. If you want to know about the last type of sign, you can search on the internet. 

  
31 tháng 1 2021

Giúp mình với mn ơiii .Mình cảm ơn nha <3

 

16 tháng 3 2022

hiu

26 tháng 5 2020

Vận tốc xuôi dòng : 48 : 1,5 = 32 ( km/h)

vận tốc ngược dòng : 48 : 2 = 24( km/h)

vận tốc dòng nuoc : (32 - 24) : 2 = 4 km/h

vận tốc bèo trôi bằng vận tốc dòng nước, nên thời gian bèo trôi từ A đến B là: 48 : 4 = 12 (h)

Dùng ròng rọc sẽ 2 lần về đương đi nên

\(h=\dfrac{s}{2}=\dfrac{8}{2}=4m\)

Công nâng là

\(A=P,h=420.4=1680\left(J\right)\)