Answers: 1
Physics, 22.06.2019 00:30
Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.
Answers: 2
Physics, 22.06.2019 17:30
Which planet do you think would be easiest for humans to colonize some day?
Answers: 1
Physics, 23.06.2019 00:00
What energy transformations occur each time the skateboarder rolls up the ramp?
Answers: 2
Physics, 23.06.2019 00:30
What is the relationship between globular clusters and the milky way?
Answers: 1
Besides strength, or magnitude, what does every force have?...
History, 28.07.2019 04:00
Geography, 28.07.2019 04:00
Mathematics, 28.07.2019 04:00
Mathematics, 28.07.2019 04:00
Mathematics, 28.07.2019 04:00
Mathematics, 28.07.2019 04:00
History, 28.07.2019 04:00
Mathematics, 28.07.2019 04:00
Mathematics, 28.07.2019 04:00
Physics, 28.07.2019 04:00
Mathematics, 28.07.2019 04:00
Mathematics, 28.07.2019 04:00