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提问人:网友myangsoft 发布时间:2022-01-07
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Object 1 has twice the mass of Object 2. Each of the objects has the same magnitude of momentum. Which of the following statements is true?

A、Both objects can have the same kinetic energy.

B、One object has 0.707 times the kinetic energy of the other.

C、One object has twice the kinetic energy of the other.

D、One object has 4 times the kinetic energy of the other.

E、None of the others.

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更多“Object 1 has twice the mass of Object 2. Each of the objects has the same magnitude of momentum. Whi…”相关的问题
第1题
Many function words in English have two pronunciations: a strong form and a weak form.
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第2题
Many objects in daily use have clearly been influenced by science, but their forms and functions, their dimensions and appearances, were determined by technologists, artisans, designers, inventors, and engineers using nonscientific modes of thought. Many features and qualities of the objects that a technologist thinks about cannot be reduced to unambiguous verbal descriptions; they are dealt with in the mind by a visual, nonverbal process. In the development of Western technology, it has been nonverbal thinking, by and large, that has fixed the outlines and filled in the details of our material surroundings. Pyramids, cathedrals, and rockets exist not because of geometry or thermodynamics, but because they were first a picture in the minds of those who built them.

The creative shaping process of a technologist's mind can be seen in nearly every artifact that exists. For example, in designing a diesel engine, a technologist might impress individual ways of nonverbal thinking on the machine by continually using an intuitive sense of rightness and fitness. What would be the shape of the combustion chamber? Where the valves should be placed? Should it have a long or short piston? Such questions have a range of answers that are supplied by experience, by physical requirements, by limitations of available space, and not least by a sense of form. Some decisions, such as wall thickness and pin diameter, may depend on scientific calculations, but the nonscientific component of design remains primary.

Design courses, then should be an essential element in engineering curricula. Nonverbal thinking, a central mechanism in engineering design, involves perceptions, the stock-in-trade of the artist, not the scientist. Because perceptive processes are not assumed to entail "hard thinking", non- verbal thought is sometimes seen as a primitive stage in the development of cognitive processes and inferior to verbal or mathematical thought. But it is paradoxical that when the staff of the Historic American Engineering Record wished to have drawings made of machines and isometric views of industrial processes for its historical record of American engineering, the only college students with the requisite abilities were not engineering students, but rather students attending architectural schools.

If courses in design, which in a strongly analytical engineering curriculum provide the back- ground required for practical problem-solving, are not provided, we can expect to encounter silly but costly errors occurring in advanced engineering systems. For example, early models of high-speed railroad cars loaded with sophisticated controls were unable to operate in a snowstorm because a fan sucked snow into the electrical system. Absurd random failures that plague automatic control systems are not merely trivial aberrations; they are a reflection of the chaos that results when design is assumed to be primarily a problem in mathematics.

The author write this passage mainly to______.

A.introduce a new idea.

B.stress the importance of nonverbal thinking.

C.criticize the education for omitting an important part of knowledge.

D.propose a suggestion.

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第3题
SECTION 2 Optional Translation (30 points)

Eurasians: The New Face of Asia

Fusion is in, not only as an abstract fashion concept, but in that most grounded of realities: mixed-blood people who walk, talk, and produce even more multiracial progeny. Most strange of all, these hybrids are finding themselves hailed as role models for vast masses in Asia with no mixed blood at all. "When I think of Asia, I don't necessarily think of people who look like me," says Declan Wong, a Chinese-Dutch-American actor and producer, "But somehow we've become the face that sells the new Asia."

So maybe Asia's Eurasian craze is driven by the theories of that whitest of white men, economist Adam Smith. As the world gets smaller, we look for a global marketing mien, a one-size-fits-all face that helps us sell Nokia cell phones and Palmolive shampoo across the world.

"For any business, you can't think locally anymore," says Paul Lau, general manager at Elite Model Management in Hong Kong, who has built up a stable of Eurasians for his internationally minded clients. "At the very least, you need to think regionally. Ideally, you should think globally." A global image helps sell products, even if no one but Filipinos would ever want to buy duck-fetus eggs or Thais the most pungent variety of shrimp paste. Yanto Zainal, president of Macsg09, a boutique ad agency in Jakarta, used all indos for a campaign for the local Matahari department store chain. "The store wanted to promote a more cosmopolitan image," he says. "Indos have an international look can still be accepted as Indonesian."

Channel V, the Asia-wide music television channel, was one of the first to broadcast the message of homogenized hybridism. "We needed a messenger that would fit in from Tokyo to the Middle East." Says Jonnifer Seeto, regional sales marketing manager for the channel, which began beaming its border-busting images in 1994. Star Veejay Asha Gill personifies the global look. When asked what her ethnic heritage is, Gill, a Malaysian citizen, simply shrugs. "Oh, who knows," she says. "I'm half Punjabi, mixed with some English, a little French and dribs and drabs of God knows what else." The 29-year-old speaks crisp British English, fluent Malay, and a smidgen of Punjabi. She grew up in a Kuala Lumpur neighborhood that was mostly Chinese, attended an English-speaking school and was pals with Malay and Indian kids. Gill's Channel V show, broadcast in English, has a strong following in Malaysia, Japan and the United Arab Emirates. "I'm Hitler's worst nightmare," she says. "My ethnicity and profession make me a global person who can't be defined in just one category."

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第4题
选出应填入下面一段英语中______内的正确答案。

One of the most difficult problems with systems(1)is understanding and(2)patterns that will be jointly achieved by the components of a system. To understand this term, think of a(3)like a mouse click that triggers some chains of causally related responsibilities performed in software. One way of looking at this is from outside the system,a mouse click causes a file icon to open on a screen. Another way to view this is from inside, the responsibilities of handling the click are decentralized in a set of objects in a running program and the click(4)through this set by means of a causally connected sequence ofinterobject(5). One ofthe objects causes the file icon to open on the screen.

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第5题
The report shows that there have been ________ improvements in some areas in the past ten years.

A、dreadful

B、dramatic

C、domestic

D、doubtful

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第6题
One of the definitions of cognition is the mental process or faculty of “knowing”, including aspects such as awareness, perception, reasoning and judgement.
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第7题
Use the same plate for your next pass through the buffet line.
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第8题
4.A high-diver of mass 70 kg jumps off a board 10 m above the water. If, 1.0 s after entering the water his downward motion is stopped, what average upward force did the water exert?

A、100 N

B、686 N

C、980 N

D、No answer is correct.

E、0 N

F、10 N

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第9题
5.Object 1 has twice the mass of Object 2. Both objects have the same kinetic energy. Which of the following statements is true?

A、Both objects can have the same magnitude of momentum.

B、Object 1 has a momentum of greater magnitude than Object 2.

C、The magnitude of the momentum of Object 2 is four times that of Object 1.

D、All the statements are false.

E、All the statements are true.

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第10题
Three satellites are launched into space connected together. Once in deep space, an explosive charge separates the three satellites and they move apart. The satellites each have different masses with m1 < m2< m3. Which of the following statements is always true?

A、The one with mass m1 receives the greatest impulse.

B、The one with mass m3 receives the greatest impulse.

C、The all must receive equal impulses.

D、Although one or more of the above statements could be true in special cases, they are not always true.

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