Nhiệt động lực học là lĩnh vực nghiên cứu về năng lượng nhiệt và sự truyền nhiệt. Nhiệt động lực học ra đời vào giữa thế kỉ XIX trong quá trình con người tìm hiểu về sự chuyền hóa năng lượng dự trữ trong các nhiên liệu thành
Nhiệt động lực học là lĩnh vực nghiên cứu về năng lượng nhiệt và sự truyền nhiệt. Nhiệt động lực học ra đời vào giữa thế kỉ XIX trong quá trình con người tìm hiểu về sự chuyền hóa năng lượng dự trữ trong các nhiên liệu thành
A. năng lượng điện để chế tạo các động cơ nhiệt.
B. cơ năng để chế tạo các máy lạnh.
C. cơ năng đề chế tạo các động cơ nhiệt.
Hãy suy nghĩ và trả lời câu hỏi trước khi xem đáp án
Câu hỏi liên quan
Đối tượng nào sau đây được coi là chủ thể sản xuất?
Mùa xuân chín được sáng tác theo thể thơ nào?
Read the following passage about peer pressure and mark the letter A, B, C, or D to indicate the best answer to each of the following questions from 23 to 30.
Peer Pressure Among Youth
Peer pressure can be particularly prevalent among teenagers, who are at a vulnerable stage of development and seeking their identity. It is a powerful force that can significantly impact the thoughts, actions, and behaviors of teenagers. During adolescence, individuals strive for acceptance and belonging, making them particularly susceptible to the influence of their peers. Understanding the nature of peer pressure and its effects is essential for supporting teenagers in navigating this challenging aspect of their social lives.
One aspect of peer pressure is the pressure to conform to the norms and expectations of a social group. Teenagers may feel compelled to adopt certain behaviors, preferences, or attitudes to fit in and avoid social rejection. This conformity can range from relatively harmless choices, such as fashion trends, to more concerning behaviors, such as substance abuse or risky activities.
Peer pressure can manifest in both explicit and implicit ways. Direct peer pressure involves explicit requests, invitations, or demands from peers to engage in specific actions or behaviors. Indirect or implicit peer pressure, on the other hand, is more subtle and involves observing others’ behaviors and feeling pressured to conform without any explicit requests. This type of pressure can be equally influential and difficult for teenagers to navigate.
It is important to note that peer pressure can have positive or negative implications. Positive peer pressure can motivate teenagers to engage in healthy behaviors, such as participating in sports, pursuing academic goals, or engaging in community service. However, it can lead to risky or harmful behaviors, such as substance abuse, delinquency, or academic underachievement.
Parents, educators, and mentors play a crucial role in helping teenagers navigate peer pressure. By fostering open and supportive relationships, adults can provide a safe space for teenagers to discuss their experiences and concerns. Promoting critical thinking, assertiveness skills, and self-confidence can empower teenagers to resist negative peer
pressure and make independent, healthy choices.
(Adapted from Peer Pressure: Its Influence on Teens and Decision Making)
The word ‘conform’ in paragraph 2 is opposite in meaning to ______.
Nguồn năng lượng được sử dụng trong quá trình hóa tổng hợp có nguồn gốc từ đâu?
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.
Hello Ethan,
d. Your suggestion for the nature magazine was perfect; it has really broadened my understanding.
b. I hope you’re having a great day!
a. They were incredibly interesting! While I’m currently focused on improving my nature photography skills, I did find the documentaries enlightening.
c. Let’s catch up soon; I’d love to share my recent photos with you!
e. I wanted to say how much I appreciated the wildlife documentaries you sent me last week. Best regards,
Chloe
Thông tin nào sau đây không đúng về ?
Phần I. Câu trắc nghiệm nhiều phương án lựa chọn. Thí sinh trả lời câu 1 đến câu 18. Mỗi câu hỏi thí sinh chỉ chọn một phương án.
Cơ quan nào sau đây của cây bàng hấp thụ ion khoáng từ đất?
Nền tảng kinh tế cơ bản của Ai Cập cổ đại là
Tổ chức liên kết khu vực nào sau đây có ít quốc gia tham gia nhất?
Read the following passage and mark the letter A, B, C, or D to indicate the option that best fits each of the numbered blanks from 18 to 22.
The World’s First GPS
On a stormy night in 1707, four ships struck rocks off the south coast of England and sank. One thousand, four hundred sailors were drowned. The ships had crashed because they had no way of knowing how far they had travelled in a particular direction; they could not calculate their longitude, which required accurate time measurement. (18) ______. In such difficult circumstances, they believed that the best response to the disaster was a competition: the Longitude Prize.
The Longitude Prize was no ordinary competition. (19) ______. Geniuses such as Sir Isaac Newton had failed to find a solution, so to ensure the interest of Britain’s greatest scientific minds, the government offered a prize of £20,000 - the equivalent of £2.6 million in today’s money. But to everyone’s surprise, it wasn’t a famous academic who solved the problem, but an unknown carpenter. When John Harrison wasn’t working with wood, (20) ______. An accurate clock would allow sailors to calculate their position, but at the time it was thought impossible to create a mechanical clock (21) ______. The movement of the sea and the changes in temperature destroyed the delicate parts. However, after three frustrated attempts, Harrison’s fourth sea clock, H4, finally triumphed. Its mechanics were so good that the H14 worked better than most clocks on land.
The Longitude Prize and Harrison’s success (22) ______. However, in 2013, the British government created a new Longitude Prize, offering £10 million to the person who could solve a great challenge to humanity.
(Adapted from Friends Global)
An accurate clock would allow sailors to calculate their position, but at the time it was thought impossible to create a mechanical clock (21) ______.Cho kí hiệu nguyên tử \(_{19}^{39}K\). Phát biểu đúng là
Một vật được thả từ trên cao xuống đất và người ta đo được thời gian rơi của nó là 2,4 s. Bỏ qua sức cản không khí. Lấy g = 9,8 m/s2. Quãng đường vật rơi được trong 0,5 s cuối trước khi chạm đất là
Cho phương trình \({{4}^{x}}-2m\cdot {{2}^{x}}+2m+2=0\). Với \(m\) là tham số thực.
Phương trình có hai nghiệm phân biệt khi và chỉ khi:Sự kiện nào đã đánh dấu sự thành lập nhà nước tư sản đầu tiên ở ngoài châu Âu?
You are attending a friend’s birthday party where many of his friends are playing a lively game with balloons. You are quite shy and don’t know those friends However, you want to be part of the game. What can you say to play the game?
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. Tom: That’s a wonderful idea! Have you thought about what kind of pet you want?
b. Jane: I’m thinking about adopting a pet.
c. Tom: Dogs are great companions!
d. Jane: Yes, I think they’ll fit perfectly with my lifestyle.
e. Jane: I’m leaning towards adopting a dog.
- Cho hàm số \(f\left( x \right)\) liên tục trên \(\left[ {a;c} \right]\) và \(b\) là số thực tùy ý thuộc đoạn \(\left[ {a;c} \right]\). Nếu biết \(\int\limits_a^b {f\left( x \right)} \,{\rm{d}}x = - 5\) và \(\int\limits_b^c {f\left( x \right)} \,{\rm{d}}x = 10\), thì giá trị của \(\int\limits_a^c {f\left( x \right)} \,{\rm{d}}x\) là
a. Karen: Hi Thomas! Oh my gosh, it’s been ages! I’m doing fine, thanks. How about you? And how’s your family?
b. Thomas: Hi Karen! It’s so good to see you after so long! How have you been?
c. Thomas: I’m doing great, thank you! Everyone’s doing well – my parents are enjoying retirement, and my brother just moved back to town.
Cho bất phương trình 2x+4y<5 có tập nghiệm là S. Khẳng định nào sau đây đúng ?
Xe máy khác ô tô ở chỗ không có:
