Bodies which are good absorbers and good radiators of heat. 2. A flask which keeps hot things hot and the cold things cold. 3. The worst conductor of heat. 4. A thermal process responsible for the formation of weather. 5. A process of transmission of heat which requires no material medium.
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Answers
Answer:
Explanation: Shining bodies are good absorber and good radiator of heat.
2. A thermos is also called a vacuum bottle because it uses a vacuum—a space that has no air in it—to keep heat from escaping from hot things inside; it also keeps heat from getting inside to make cold things warmer.
3.The poorest conductor of heat among metals is Bismuth. Stainless steel is another one that is a poor conductor of heat, and you use this often in everyday life! Other poor conductors include titanium, lead and chromium.
4.Weather on Earth is caused by heat from the sun and movement of the air. All weather happens in the lower layer of Earth's atmosphere, which is a layer of gases surrounding Earth. The sun's heat warms the air in this layer to different temperature levels in different places. ... This movement of air is what we call wind.
5.Radiation is the process in which heat is transmitted one place to other directly without intervening medium. ... Heat radiations also form a part of electromagnetic spectrum. Transfer of heat by radiation does not need any material medium. Energy from the sun comes to us by radiation.
Answer:
a conductor while moving through a magnetic field acting perpendicular to its length delivered it's power 200joule per second when velocity is 2m/s if velocity increase to 3m/s what will be the additional power delivered
Explanation:
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