We just started Monday.
We havent done anything,
today he gave us our book. and said
Ok this is your homework.
Find out how you determine the volume of air inside a balloon.
Get as close as possible.
Help i have no clue what he wants us to do!!
2006-08-29 11:19:15 · 11 answers · asked by Anonymous in Education & Reference ➔ Homework Help
He wants you to open the book he gave you and find out the answer to his question ... he doesn't want to know the actual volume of the air inside a balloon ... he justs wants you to know how to figure it out. I'll bet the answer is somewhere near the beginning of your textbook.
2006-08-29 11:26:35 · answer #1 · answered by frankiquilts 3 · 0⤊ 0⤋
The balloon is roughly spherical or solid elipsoid. You could measure the the length of the minor and major axies (the straight length from the tied end to the top of the baloon and then the width from the middle of the balloon. You'll also need the circumfrence at the widest point.
The volume is four thirds of pi times the major axis times the minor axis squared.
The balloon could also be described as roughly conical and the volume of a cone is one third of pi times the height (same as major axis) times the radius of the bottom squared. You'll have to estimate the radius by taking the circumfrence at the widest point and dividing by two times pi.
If your balloon is one of those long ones you would need the volume of a cylinder which would be the length times the radius squared times pi.
You can use 3.14 for pi.
2006-08-29 11:34:30 · answer #2 · answered by Joker 7 · 0⤊ 0⤋
You either have a very bad science teacher or you weren't paying attention.
The only thing I can suggest is when a balloon is blown up it takes up a shape similar to (but not exactly equal to) the shape of a sphere. I would guess that somewhere in your science book there is the formula for the volume of a sphere which is :-
4pi r^3/3. Which means 4 times pi times radius times radius times radius divided by three.
Since it won't be a perfect sphere, this might be why he said "Get as close as possible."
Just spotted 'frankiquilts' answer. Combine her answer with mine!
2006-08-29 11:36:02 · answer #3 · answered by brainyandy 6 · 0⤊ 0⤋
Maybe you should put as much air from your lungs to the balloon :) Then fill it with water. Try not to let to much air out of the balloon.
When you finish, put the water from the balloon into the bottle of known volume. That way you could approximate your air volume inside of the balloon.
Hope it helps.
2006-08-29 11:26:45 · answer #4 · answered by lelket 1 · 0⤊ 0⤋
That does look really irrelevant, or a minimum of could surely be considered as irrelevant. per chance ask in case you'll get espresso for the duration of lunch at school faster or later or something like that. which will be way extra constructive than Friday nighttime. purely tell him you're busy Friday nighttime. And please do not heavily evaluate attempting to commence a courting. i'm particular he's an excellent guy, yet he's a mid 30s instructor and also you're a 17 year previous severe college senior in his classification. this would finally end up very badly for both one in each of you and intensely quickly.
2016-12-05 22:24:01 · answer #5 · answered by ? 3 · 0⤊ 0⤋
OMG he is asking you to think?!?! What a horrible, cruel, teacher! :o)
You might approximate by assuming the inflated balloon to be a sphere (well, almost), and measure the circumference, which will lead you to the volume of the sphere. Use geometry. That's the math way to do it.
Here's another hint - what happens if you put the balloon under water? Archimedes would know!
2006-08-29 11:26:45 · answer #6 · answered by Anonymous · 0⤊ 0⤋
If the balloon is inflated you can estimate the answer by using the volume of a sphere formula, V = (4/3)(pi)(radius^3). Remember, radius is halfway across the circle.
2006-08-29 11:27:16 · answer #7 · answered by puhpaul 3 · 0⤊ 0⤋
figure the ballon is a circle, so you must find the volume of a circle
Volume = 4/3 pr3
r= radius
p= diameter (If I remember correctly) see if you can find the formula in your book. Try the index.'
Stop whining! Your teacher is trying to help you learn to think.
2006-08-29 11:28:43 · answer #8 · answered by Anonymous · 0⤊ 0⤋
maybe you should try archimedes' rule. to get the volume of an irregular object, you should place it an a container full of water. the volume of the water which spills off is also equivalent to the volume of the object you dipped in. but you should still read your book, there' probably something in there that'll help you.
2006-08-29 11:35:10 · answer #9 · answered by lemons 3 · 0⤊ 0⤋
pump up a balloon and determine how heavy the air inside the balloon is...i think.
2006-08-29 11:22:55 · answer #10 · answered by alex wolfgang black 2 · 1⤊ 0⤋