Một ô tô đang chạy với vận tốc 20 m/s lên dốc, chuyển động chậm dần đều với gia tốc 0,4 m/s². Cùng lúc đó, một xe đạp đang đi với vận tốc 2 m/s thì xuống dốc chuyển động nhanh dần đều với gia tốc 0,2 m/s². Biết dốc dài 570 m. Vị trí hai xe gặp nhau trên dốc cách chân dốc là

Ưu điểm công nghệ sấy thăng hoa:

Read the following passage about Reducing Electronic Waste and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22.

In today's hyper-connected world, our constant need for the newest electronic devices has led to a growing environmental crisis. Electronic waste, or e-waste, is one of the fastest-growing waste streams globally, with millions of tons discarded annually. A digital detox, (18)_________, can be an effective environmental practice that helps address this issue.

(19)_________, the current e-waste crisis might have been avoided. The devices that we carelessly discard often contain valuable materials that could be recycled and harmful components that contaminate soil and water. Many consumers replace functioning smartphones and laptops simply because newer models are available, not realizing the environmental impact of their decisions. The manufacturing process of new electronics requires significant resources and energy; (20)_________.

Practicing digital detox not only improves mental health but also decreases the demand for new products. (21)_________; however, if consumer demand decreases, production might slow down as well. Individuals who commit to using their devices for longer periods contribute significantly to waste reduction, and they often discover that older models fulfill their needs perfectly well.

The electronic waste problem requires both individual action and systemic change. We can create a world embracing sustainable principles, (22)_________, through our participation in digital detox practices and mindful consumption.

Khi gửi tiết kiệm P (đồng) theo thể thức trả lãi kép định kì với lãi suất mỗi kì là r (r cho dưới dạng số thập phân) thì số tiền A (cả vốn lẫn lãi) nhận được sau t kì gửi là \(A = P{\left( {1 + r} \right)^t}\) (đồng). Thời gian gửi tiết kiệm cần thiết để số tiền ban đầu tăng gấp ba là?

Phát biểu nào sau đây không chính xác về môi trường sống của con người?

Tập hợp nào sau đây là tập rỗng?

1 gram electron có bao nhiêu hạt?

Trong không gian Oxyz, cho các điểm \(A(1;1;2)\) và \(B(4;5;1)\). Các điểm M, N di động trên mặt phẳng \((Oxy)\) sao cho \(MN=1\). Tổng \(AM+BN\) có giá trị nhỏ nhất là bao nhiêu (nhập đáp án vào ô trống)?

Mỗi orbital nguyên tử chứa tối đa

Trong các quốc gia, sự phát triển kinh tế tư bản chủ nghĩa ở quốc gia, khu vực nào là tiêu biểu nhất?

Read the following passage about the impact of social media on mental health and mark the letter A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions

[I] In recent years, social media platforms have become a central part of daily life, offering users countless ways to connect, share, and communicate. [II] While these platforms offer many advantages, experts have noted rising concerns about their effects on mental health, particularly among young people (Smith & Anderson, 2018). [III] Studies reveal that excessive social media use can contribute to feelings of anxiety, depression, and loneliness, despite its intention to promote connection and social interaction (Twenge & Campbell, 2019). [IV]

A primary reason for these mental health concerns is the tendency for social media users to compare themselves to others. Platforms like Instagram and Facebook often highlight idealized lifestyles, leading users to feel inadequate about their own lives. Additionally, the constant notifications and messages contribute to a "fear of missing out," or FOMO, which keeps individuals in a cycle of checking their phones, often reducing the quality of sleep and overall well-being.

There is also a growing body of research suggesting a link between social media use and decreased attention spans. When users frequently switch between apps and notifications, their ability to focus for extended periods may diminish (Rosen, 2019). This shift in attention can interfere with productivity, especially in academic and professional settings, where sustained focus is essential.

Addressing these challenges requires a multi-faceted approach. Some mental health professionals suggest limiting screen time and setting boundaries, such as "device-free" hours before bedtime. Others recommend engaging in offline activities, like reading or exercising, to reduce dependence on social media and build healthier habits. According to psychologists, such strategies can bu mental resilience and allow for more meaningful, balanced relationships (Robinson & Smith, 2020).

Where in paragraph I does the following sentence best fit? “Young people are particularly affected due to their high engagement with these platforms.”

Ở Việt Nam, quyền lực nhà nước thuộc về ai?

Nhóm cây trồng nào sau đây phân loại theo khả năng hóa gỗ của thân?

Nguyên liệu sản xuất gang là từ:

Yêu cầu về địa điểm chăn nuôi trong chăn nuôi theo tiêu chuẩn VietGAP là:

Mark the letter A, B, C, or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17

a. Dr. Smith: How do you do.

b. Dr. Smith: I’ve read your articles on technical assistance. They’re excellent

c. Margaret: Mr. Wilson, I’d like you to meet Dr. Edward Smith.

d. Mr. Wilson: Yes. How did you guess?

e. Mr. Wilson: How do you do, Dr. Smith.

f. Dr. Smith: In the Development Program, by any chance?

g. Margaret: Dr. Smith is an economist. He’s just finished writing a book on international trade.

h. Mr. Wilson: Oh? That’s my field, too. I work for the United Nations.

Choose A, B, C or D to make a complete dialogue for each question.

a. What are you going to do about forgetting her birthday?

b. I’m so embarrassed! I entirely forgot.

c. Maybe you should just apologize sincerely.

d. I’ll probably say I was swamped with work and it slipped my mind.

e. Oh, no, I did!

f. Didn’t you use that excuse last year?

Cặp đồ thị nào ở hình dưới đây là của chuyển động thẳng đều?

Chọn phương án đúng khi chọn khóa chính cho bảng?