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0:31
Another example of the Leidenfrost... - Physics is Fun 2
Another example of the Leidenfrost effect ⚪️ A balloon is heated up so much that a layer of vapor forms around it. Once it cools down enough, it...
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An 8.5 - L nitrogen-filled balloon is heated in a warm oven and... | Filo
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a small hot air balloon is filled with 102106 l of air d 120 gl as the air in the balloon is heated it expands to 109106 l what is the density of the heated air in the balloon 09709
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Enjoy the... - Durango & Silverton Narrow Gauge Railroad
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A hot-air balloon has a volume of 875 L. What is the original temperature of the balloon if its volume changes to 955 L when heated to 56^∘ C ? | Numerade
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A hot-air balloon has a volume of 2800 m^3. The balloon fabric (the envelope) weighs 910 N. The basket with gear and full propane tanks weighs 2000 N. If the balloon can barely lift an additional 2800 N of passengers, breakfast, and champagne when the outside air density is 1.23 kg / m^3, what is the average density of the heated gases in the envelope? | Numerade
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SOLVED:A spherical balloon contains 2 kg of R-410A at 0^∘ C with a quality of 30 %. This system is heated until the pressure in the balloon reaches 1 MPa. For this process, it can be assumed that the pressure in the balloon is directly proportional to the balloon diameter. How does pressure vary with volume, and what is the heat transfer for the process?
2022年8月1日
numerade.com
The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg . The air outside is at 10.0^∘ C and 101 kPa . The volume of the balloon is 400 m^3 . To what temperature must the air in the balloon be heated before the balloon will lift off? (Air density at 10.0^∘ C is 1.25 kg / m^3 . ) | Numerade
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A hot-air balloon is filled with air to a volume of 4.00 ×10^3 m^3 at 745 torr and 21^∘ C . The air in the balloon is then heated to 62^∘ C, causing the balloon to expand to a volume of 4.20 ×10^3 m^3 . What is the ratio of the number of moles of air in the heated balloon to the original number of moles of air in the balloon? (Hint: Openings in the balloon allow air to flow in and out. Thus the pressure in the balloon is always the same as that of the atmosphere.) | Numerade
2019年10月6日
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