amyloid
发表于 2025-3-26 22:14:38
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发电机
发表于 2025-3-27 02:48:00
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极深
发表于 2025-3-27 07:56:30
Heat Transfer. A . is a body which performs work (–.) or gives away heat (−.); the same body can also receive work (+.) or heat (+.). Notice the sign: when you carry out work or give away heat (you hold someone’s cold hands) the sign is minus. When you receive work (a friend carries your schoolbooks) or heat (wa
Watemelon
发表于 2025-3-27 11:01:47
Thermodynamics to the third floor. While doing this you give away mechanical work (a lot of it, in this case); we will label it as –.. You also get really hot while carrying the piano and exchange your body heat with the environment (you sweat); we label it by –.. The total energy change in your body is a sum of
Overdose
发表于 2025-3-27 14:56:56
Mixtures and Solutionss. The blood flowing through our veins and arteries is a mixture of water and many thousands of other molecules. When we add salt, NaCl, to water and let it dissolve we call this mixture a .. The solid NaCl is the . and the liquid water is the .. We measure salt in grams (or kilograms) and water in
阐明
发表于 2025-3-27 19:36:32
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sulcus
发表于 2025-3-27 22:14:44
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interlude
发表于 2025-3-28 05:24:36
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无弹性
发表于 2025-3-28 09:31:59
Kineticsies to chemical reactions and also many other types of changes, for example, changes in biological processes, physical changes, or the changes in the amount of money on your bank account. Kinetics is also about observing and recording the speed of change rather than trying to understand its causes (
rheumatism
发表于 2025-3-28 11:43:49
that is suitable for all problems. Instead, different problems call for different approaches. Furthermore, it can be helpful to analyze the same system using a variety of approaches, to be able to exploit the advantages and drawbacks of each. In practice, it is often unclear which modeling approache