Answer and Explanation: A hot air balloon rises when it is heated because the heat increases the kinetic energy of the molecules in the balloon and this leads to the air...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our ...
The solar powered hot air balloon has a surface oriented towards the sun to allow the concentration of solar energy at the centre of the envelope. The envelope can be made of a membrane (1) which is transparent to solar radiation but impermeable to convection. A collector (3) can recover ...
Answer and Explanation: If hot air approaches a colder air mass, the hot air will rise above the cold air because it is not as dense. When this happens, clouds form from the...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question ...
When hot air rises from a radiator or heating duct, objects behind it appear to shimmer or waver. What causes this? Explain why most materials become less dense as their temperature is increased. You've learned that heat can be transported by (1) conduction, (...
from Chapter 7 / Lesson 9 133K Learn about heat energy, which is also known as thermal energy. Explore how heat energy works and discover the ways it transfers from one material to another, including radiation, conduction, and convection. Related...
convection If a sealed 1L jar is cooled, what happens to the gas molecules? a. They move more slowly. b. They collide more often with the walls of the jar. c. Their vibration increases. d. They move farther apart. Why do carbonated beverages go "flat" when opened an...