Từ đồ thị độ dịch chuyển – thời gian bên dưới. Xác định tốc độ của chuyển động?

 Bộ xử lý trung tâm là?

Người ta dẫn 0,2 kg hơi nước ở nhiệt độ 100^∘C vào một bình chứa 1,5 kg nước ở nhiệt độ 15^∘C . Coi nhiệt độ truyền ra ngoài môi trường là không đáng kể. Biết nhiệt dung riêng của nước là 4200J/kg.K ; nhiệt dung riêng của nhôm 880J/kg.K ; nhiệt hóa hơi riêng của nước là 2,3.10⁶J/kg . Khi xảy ra cân bằng nhiệt, nhiệt độ của nước trong bình là

Hệ điều hành được sử dụng phổ biến trên máy tính cá nhân hiện nay là HĐH nào?

Để thiết lập kết nối với cơ sở dữ liệu MySQL trong HeidiSQL, bạn cần cung cấp thông tin gì?

Read the following passage 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 23 to 30.

          Happiness is a universal goal, yet its ingredients differ across societies and cultures. For some, safety and security are paramount, as demonstrated by Singapore. Known for its strict laws and highly regulated environment, Singapore provides a clean, orderly, and safe place for its citizens. The government ensures access to basic necessities such as housing and healthcare, significantly reducing poverty and promoting equality. While personal freedoms may be limited, many Singaporeans find satisfaction in the stability and quality of life their country offers, showing that happiness can stem from collective security.

        In contrast, Mexico highlights the importance of social connections in achieving happiness. Despite challenges like poverty and limited access to essential resources, Mexicans often prioritize relationships with family, friends, and neighbors. Simple acts like sharing meals or gathering in the community foster a sense of belonging and emotional well-being. Psychologists have long noted that feeling part of a larger social group can be a powerful source of happiness, even when material wealth is scarce. For them, the joy derived from relationships often outweighs material concerns.

       The role of money in happiness, however, is often debated. In Mexico, many individuals live in similar financial conditions, reducing the pressure of economic competition. When neighbors lack expensive possessions, individuals are less likely to feel dissatisfied with their own circumstances. This suggests that relative wealth and equality may have a stronger influence on happiness than absolute income.

       Ultimately, there is no universal recipe for happiness. Factors like security, freedom, social bonds, and financial equality all play a role, but their importance varies depending on individual and cultural values. Happiness, therefore, remains a deeply personal and multifaceted pursuit, shaped by our unique perspectives and circumstances.                                                                   

Which of the following is TRUE about happiness according to the passage?

Dấu hiệu nào dưới đây của pháp luật là một trong những đặc điểm để phân biệt pháp luật với đạo đức?

Read the following passage about urbanisation and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions.

URBANISATION: A GROWING PHENOMENON

     Urbanisation is the process through which cities grow, and higher populations begin to inhabit urban areas. This phenomenon has accelerated significantly over the past few decades due to various factors. One of the primary drivers is the search for better employment opportunities. In rural areas, job prospects are often limited to agriculture and small-scale industries, which might not provide sufficient income. Consequently, people migrate to cities seeking better livelihoods and living standards.

     Additionally, urban areas offer more advanced educational facilities and healthcare services compared to rural regions. Many families move to cities to provide their children with higher-quality education and greater future opportunities. Access to hospitals and specialized medical services also attracts people to urban centers, especially in countries where rural healthcare is underdeveloped.

     However, rapid urbanisation brings about several challenges. Overcrowding in cities can lead to inadequate housing, strained infrastructure, and increased pollution. The expansion of urban areas often results in the loss of green spaces and agricultural land, impacting food production and the environment. Governments and city planners must address these issues to ensure sustainable urban growth.

     Despite these challenges, urbanisation has several positive aspects. Cities are often cultural melting pots, where diverse groups of people interact, leading to vibrant communities and innovation. The concentration of resources and talents in urban areas can drive economic growth and technological advancements.

Which of the following is TRUE according to the passage?

Cho tập hợp A = $\{x \in \mathbb{N}$ | $x$ là ước chung của $30$ và $54\}$. Tập $A$ viết bằng cách liệt kê các phần tử là

Cho biết: Các nguyên tắc phát triển bản vững là?

Rửa xe, đánh bóng vỏ xe là công việc bảo dưỡng cơ bản nào?

Con lắc lò xo treo thẳng đứng, lò xo có khối lượng không đáng kể. Hòn bi đang ở vị trí cân bằng thì được kéo xuống dưới theo phương thẳng đứng một đoạn 3cm rồi thả nhẹ cho nó dao động. Hòn bi thực hiện 50 dao động mất 20s. Cho \(g = {\pi ^2} = 10m/{s^2}\). Tỉ số độ lớn lực đàn hồi cực đại và lực đàn hồi cực tiểu của lò xo \(\left( {\frac{{{F_{dh\max }}}}{{{F_{dh\min }}}}} \right)\) khi dao động là:

Hãy chọn câu sai trong các câu sau về Access và cơ sở dữ liệu (CSDL)?

Cho vay tín chấp là hình thức cho vay dựa vào điều gì?

Để xác định phụ nữ có thai hay không, người ta dùng que thử thai để xác định sự có mặt của loại hormone nào sau đây?

Câu tục ngữ nào sau đây có nội dung nói về đặc điểm của cơ chế của thị trường?

Hoạt động sản xuất kinh doanh có những vai trò nào?

Nguyên nhân trực tiếp khiến thực dân Pháp quỵểt định đánh thẳng vào kinh thành Huế năm 1883 là

Millions of people are using cellphones today. In many places, it is actually considered unusual not to use one. In many countries, cellphones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.

The explosion in mobile phone use around the world has made some health professionals worrieSome doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.

On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.

What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.

As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.

Which of the following does the author probably support?

Nếu đặt vào hai đầu tụ một hiệu điện thế 4 V thì tụ tích được một điện lượng 2µC. Nếu đặt vào hai đầu tụ một hiệu điện thế 10 V thì tụ tích được một điện lượng