Một sợi dây đàn hồi dài 90 cm có hai đầu cố định, đang có sóng dừng. Trên dây có 8 nút (kể cả 2 đầu dây). Biết rằng khoảng thời gian giữa 6 lần liên tiếp sợi dây dũi thẳng là 0,25 s. Tốc độ truyền sóng trên dây là

Choose A, B, C or D that has the CLOSEST meaning to the given pair of sentences in the question.

They realized they had no alternative plans for the weekend. They decided to organize a game night.

Quốc gia nào sau đây nằm hoàn toàn bên trong lãnh thổ Cộng hòa Nam Phi?

Đâu không phải là vai trò của quang hợp?

Tiểu thuyết nổi tiếng “Những người khốn khổ” là tác phẩm của:

Mỗi orbital nguyên tử chứa tối đa

Em hãy cho biết vật lí ảnh hưởng tới lĩnh vực nào trong số các lĩnh vực sau:

Chủ thể sản xuất là đối tượng nào dưới đây?

Read the following passage about the Reimagining International Cooperation and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.

Global environmental governance is changing how countries work together. Nations now understand that pollution, climate change, and resource problems cross borders. Traditional agreements between countries are not enough anymore. New approaches include businesses, local communities, and citizen groups working with governments. This all-hands-on-deck approach helps create better solutions for our planet. Many successful projects show that when different groups cooperate, they can solve difficult environmental problems that single countries cannot fix alone.

Environmental governance faces many challenges today. [I] Political differences between nations often slow down important decisions. [II] Some countries worry that strict environmental rules might hurt their economic growth. Despite these obstacles, new technologies are helping countries monitor environmental changes better. [III] Satellite data and computer models allow scientists to track forest loss, ocean pollution, and climate patterns. [IV] This information helps leaders make smarter decisions about protecting natural resources.

The future of environmental governance depends on innovation. Digital platforms now connect environmental experts around the world instantly. Young people are bringing fresh ideas through social media campaigns and protest movements. Indigenous communities contribute valuable traditional knowledge about sustainable living practices. Financial institutions are creating new ways to fund green projects in developing countries. These combined efforts are creating a more flexible and responsive system of global cooperation that can adapt to changing environmental conditions more quickly than old-fashioned diplomatic channels.

Effective environmental governance requires balance between global standards and local solutions. While international agreements provide important frameworks, communities need freedom to implement approaches that fit their unique situations. Successful governance models respect cultural differences while maintaining scientific standards. Education plays a crucial role in building public support for environmental policies. When citizens understand environmental issues, they make better choices and hold their leaders accountable. The most promising path forward combines strong international institutions with energetic local action to create lasting environmental solutions.

The phrase “all-hands-on-deck” in paragraph 1 could be best replaced by _________.

Trong mặt phẳng toạ độ \(Oxy\), cho hai điểm \(A(1;5),B(3;2)\). Điểm \(C\) đối xứng với \(A\) qua \(B\). Toạ độ điểm \(C\) là?

Hệ thức ΔU = A + Q với A < 0 và Q < 0 diễn tả cho quá trình nào dưới đây của chất khí?

Mệnh đề nào là phủ định của mệnh đề: “\(\exists x \in \mathbb{R}|{x^2} - 3x + 2 > 0\)”?

Trong quá trình dinh dưỡng ở người, các chất dinh dưỡng được hấp thụ vào máu ở cơ quan nào?

Thuật ngữ nào dùng để chỉ ra các thiết bị vào ra của hệ thống máy tính?

Phát biểu nào sau đây là đúng?

Ren ngoài có tên gọi khác là:

A human-like robot that can drive a car could one day be used as a chauffeur, though its creator admits that this may take at least 50 years.

Most driverless cars work very differently to a human driver, using artificial intelligence and custom mechanical systems to directly move the steering wheel and pedals. This approach is much more efficient and simpler than using a robot to drive, but it is also specially made for each particular car.

Kento Kawaharazuka at the University of Tokyo and his colleagues have developed a human-like robot, called Musashi, that can drive a car in the same way as a human. It has a human-like “skeleton” and “musculature”, as well as cameras in each of its eyes and force sensors in its hands and feet. Artificial intelligence systems work out what actions are needed to drive the car and react to events that often happen on roads such as traffic lights changing colour or a person stepping in front of the car. The robot can only perform a limited range of driving tasks at present, such as going forward in a straight line, taking a right- hand turn, and moving at speeds of around five kilometres per hour on non-public roads. “The speed of the pedal or the velocity of the car is not high. Also, the handling of the car is not fast compared to human beings,” says Kawaharazuka.

It seems that a robot at the controls of a car, operating in real traffic conditions and in total safety, is not something we are likely to see soon. As mentioned earlier, it could be decades before a robot could really step into the driver’s seat.

What is mentioned about driverless cars in paragraph 2?

Cho \(A=\left\{ 0;1;2;3;4 \right\},\,B=\left\{ 2;3;4;5;6 \right\}.\)

Tập hợp \(\left( A\backslash B \right)\cup \left( B\backslash A \right)\) bằng

Độ lệch pha giữa hai dao động điều hòa cùng chu kì là: