From Facebook: someone please help. The answers seem to be widely varying.... @InertialObservr @starstrickenSFpic.twitter.com/HNV4x7hplO
PhD student of Theoretical Particle Physics @UCIrvine l @NSF Fellow l Physics & Math Animations l Patreon: https://www.patreon.com/inertialobserver …
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From Facebook: someone please help. The answers seem to be widely varying.... @InertialObservr @starstrickenSFpic.twitter.com/HNV4x7hplO
1 kg plus weight of air with no flies
Sealed system. Flies are holding themselves up with a collective 4.9 N of force. Something has to react that force. Ultimately, it's the bottom of the jar, and as such, the scale.
This is not unlike the load path for your car through its tires. It's the air holding it up.
I don’t see how it’s any different from placing ice cubes in a full glass of water then sealing the jar .. the weight of the water will overflow which is the same weight as the ice cubes
For one, the flies are more dense than air, and it's mechanical energy that keeps them aloft, not buoyancy. For a thought experiment: imagine the jar starts off sealed with the flies resting on the bottom. Surely it's 1.5kg. What changes when the flies lift off?
Yes I fixed it, thanks.
I forgot full submersion displaces volume not weight
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