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 06:00
Why don't you see your reflection in water with waves or repples
Answers: 1
Physics, 22.06.2019 12:30
Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?
Answers: 1
Physics, 22.06.2019 14:40
You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.
Answers: 2
Pls help I think it's pretty easy
Electromagnetic waves transfer energy and are produced by ....
Mathematics, 09.12.2019 08:31
Advanced Placement (AP), 09.12.2019 08:31
English, 09.12.2019 08:31
Chemistry, 09.12.2019 08:31
Mathematics, 09.12.2019 08:31
Spanish, 09.12.2019 08:31
English, 09.12.2019 08:31
Mathematics, 09.12.2019 08:31
Mathematics, 09.12.2019 08:31
Mathematics, 09.12.2019 08:31
Social Studies, 09.12.2019 08:31