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2023-11: Warosu is now out of extended maintenance.

/sci/ - Science & Math

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9654379 No.9654379 [Reply] [Original]

/sci/ test

if you can't solve this, your a brainlet and should leave this site

>> No.9654391

>>9654379
I'm the flies weight 0.5kg but when they're flying they push the air down weighing an additional 0.5kg plus whatever is required to lift them. So 1kg total, plus the weight of the jar which is 1kg. Trolling idiots are going to say I'm wrong but I know I'm not. You can logic it out easily

>> No.9654399

mass of the jar + mass of the air. correct answer isn’t pictured

>> No.9654447

>>9654399
Flies have mass too. Everything in the air has mass.

>> No.9654491

>>9654379
On average 1.5kg
Heavy flies tho

>> No.9654511
File: 24 KB, 466x490, 1522380315236.png [View same] [iqdb] [saucenao] [google]
9654511

>>9654399
hahahahahahahhahahaah by the 2nd post he reveals how dumb he is hahahahahahahah

>> No.9654521

How do you fit 0.5kg worth of flies into a small 1kg jar?

>> No.9654681
File: 79 KB, 492x497, 4365346345643.png [View same] [iqdb] [saucenao] [google]
9654681

3.5kg

>> No.9654741

>>9654379
How old are you?
This is basic physics that even kids know

>> No.9654742

>>9654379
answer: [math] 1 \pm 0.5 [/math] kg

>> No.9654751

>>9654379
1.5kg if the jar is sealed.

I think I saw this on mythbusters.

>> No.9654756

>weighing flies
>what does the scale read

The weight of the fucking flies, you nimrod. There's a reason 'tare' exists, it's to measure whatever is inside of the container.

>> No.9654773

>>9654742
Uhh no. It's definitely greater than 1kg you massive retard.

>> No.9654790

>>9654379

Depend if the flies are actually flying around or are just clinging to the surfaces of the jar.

If the flies are all airborne then they exert no force on the scale, the scales then read 1kg.

If the flies are clinging to the surfaces of the jar then they will exert force, and the scales will read 1.5 kg.

>> No.9654804
File: 81 KB, 645x729, 8d6.jpg [View same] [iqdb] [saucenao] [google]
9654804

>>9654741

>> No.9654835

>>9654379
you're*

>> No.9654843
File: 11 KB, 659x352, brainlet meme.png [View same] [iqdb] [saucenao] [google]
9654843

>> No.9654907

>>9654835
you're a brainlet*

>> No.9654949

>>9654379
if the jar is sealed while the fatflies are at rest and then the fatflies go buzzin around, the weight will be 1.5 kg.

if the jar is open while the fatflies are flyin' and then sealed, the weight will be 1kg.

air is a fluid, but it isn't a liquid.

>> No.9654982

>>9654751
You are correct. They wouldn't push down excess weight or anything in a sealed jar.
If the jar is opened then it would just be 1kg. Maybe a bit more depending on where the holes are due to airflow etc.

>> No.9654999

>>9654379
Scale reads 5 [flies], of course.

>> No.9655014

>>9654790
How the fuck did it take this long to get a real answer?

>>9654391
The most glaring issue here is that the air the flies displace is equal to their volume, not weight.

>> No.9655020

>>9655014
The factor not given in the question is whether the jar is sealed while the flies are flying or while the flies are at rest.

>> No.9655023

>>9654751
Bullshit. Link the episode if you really believe that.

>> No.9655043

>>9655023
they do a birds in a truck thing in episode 77 fag.

>> No.9655049

What's the volume of the jar?

The scale reads the difference between the weight of all the things in the jar (+jar) minus the buoyant force, which is just proportional to the volume of the jar.

Easy. Not enough information was given.

>> No.9655278

>>9654751
>>9654949
>>9654982
>>9655014
>>9655020
Doesn't Matter if sealed or unsealed

>> No.9655485

>>9655278
gr8 b8

>> No.9655505

>>9654790
>>9655014
HAHAHAHAHAHAHAAHAHAHHAHA

>> No.9655548
File: 54 KB, 852x655, 1523126724269.png [View same] [iqdb] [saucenao] [google]
9655548

what now?

>> No.9655589

jokes on you guys, I reset the scale after I put all that shit on it

>> No.9655694

>>9655548
Obviously 1.5 but you drew it wrong, the flies are all now on the bottom of the jar

>> No.9655706

>>9654379
I can't tell you what the scale would read because I don't know how much the air inside the jar weighs.

>> No.9655719

>>9655548
1kg because you've sucked all the flies out of the jar

>> No.9655725

>>9655548

If the flies are in a vacuum they can't fly.

>> No.9655726

>>9654790
>If the flies are all airborne then they exert no force on the scale, the scales then read 1kg.
Not quite. If the flies are hovering in place the scale will read 1.5kg. If they're accelerating upwards it will read more than 1.5kg temporarily. If they're freefalling downwards the scale will lead less than 1.5kg temporarily. On average the scale reads 1.5kg regardless of whether the flies are airborne or not, as the weight from the acceleration and freefalling cancel each other out over time.

>> No.9655760

>>9654379
If the flies aren't exerting any force on the bottom of the jar then of course it's just gonna read 1 kg.