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Posers and Puzzles

KS

Palmerston North

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I have some questions to ask you guys.

There is a balloon with a radius of 45cm.
There is a pump that fills at a rate of 27.3L/s.
How long will it take to fill up the balloon (answer in min plz)?

For some reason I got around 14 min where did i go wrong?

T

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Homework?

X
Cancerous Bus Crash

p^2.sin(phi)

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41.9 seconds

KS

Palmerston North

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Yep

KS

Palmerston North

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lets try R 45m?

AThousandYoung
1st Dan TKD Kukkiwon

tinyurl.com/2te6yzdu

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Originally posted by Knight Square
I have some questions to ask you guys.

There is a balloon with a radius of 45cm.
There is a pump that fills at a rate of 27.3L/s.
How long will it take to fill up the balloon (answer in min plz)?

For some reason I got around 14 min where did i go wrong?
Volume of a sphere: (4/3)pi*r^3

You get cm^3 = mL.

Divide the mL by 1000 (or multiply the pump speed by 1000) and the units will match. Now divide the volume by the pump's rate.

You get seconds. Now divide by 60 to get minutes.

KS

Palmerston North

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Did that,need Answer as well
I dont know if the figure are correct

T

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Originally posted by Knight Square
Yep
I think that when asking for help with homework you should show some of your own work and point out where you are having difficulty. Being handed the answer on a plate isn't going to help you pass your exams.

X
Cancerous Bus Crash

p^2.sin(phi)

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Originally posted by ThudanBlunder
I think that when asking for help with homework you should show some of your own work and point out where you are having difficulty. Being handed the answer on a plate isn't going to help you pass your exams.
And he still doesn't know where he went wrong.

KS

Palmerston North

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Okay here are the real figures.
R 45 cm
pump 27.3/min

4/3*pi*.45^3=0.381703507 (figure in m^3)
coversation to L (from m^3)= 1000*0.381703507
= 381.7035074
rate= 381.7035074/27.3
= 13.98181346min
rounds to about 14 min.
Answer is needed in min anyway.

Am I correct or wrong.

X
Cancerous Bus Crash

p^2.sin(phi)

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You use an incorrect formula and you can't decide whether your rate is per second or per minute.

Maybe you should leave the number stuff to other people. You are clearly not cutout to do math. Or physics.

KS

Palmerston North

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Noooooooooo. I gave you the wrong info.
its in min not secs OKAY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

What form are you XanthousNZ?

X
Cancerous Bus Crash

p^2.sin(phi)

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Originally posted by Knight Square
Noooooooooo. I gave you the wrong info.
its in min not secs OKAY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

What form are you XanthousNZ?
Forms are obsolete.

KS

Palmerston North

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Okay then they are then.
Play any other sports? Rugby, Cricket?

E

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Originally posted by Knight Square
Okay then they are then.
Play any other sports? Rugby, Cricket?
play any good sports? football? basketball?

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