Worth a shot...(physics, I know I know)

[johnjohn320]

Calculate the magnitude of the gravitational force exerted on a 425 kg satellite that is a distance of two earth radii from the center of the earth.

I used the equation W = G (Me * m) / r^2

Solved for W, got 3.45 * 10^30

No idea whatsoever how I'm supposed to use this info to get the magnitude of gravity on the object. Any help?

 

[Evadman]

That satalite is flying through the atmosphere of the earth. I see flaming death for someone.

Pssst: inverse square of the distance.

 

[Torghn]

You need to solve for g, and since g isn't in your equation, you need a different equation.

 

[Broohaha]

W = G (Me * m) / r^2

...... hmmmm

WGMEMR

wegmmr?
gemwmr?

 

[Eli]

Originally posted by: Torghn
You need to solve for g, and since g isn't in your equation, you need a different equation.

 

[Broohaha]

Originally posted by: Torghn
You need to solve for g, and since g isn't in your equation, you need a different equation.

isnt G a constant?

if that's true then i pwn j000!!

 

[Torghn]

Originally posted by: Broohaha

Originally posted by: Torghn You need to solve for g, and since g isn't in your equation, you need a different equation.

isnt G a constant? if that's true then i pwn j000!!

G!=g

edit: Just so you know what I'm talking about. g on Earth's surface is very close to 9.8m/s^2
G=gravitational constat=6.67300x10^-11m^3kg^-1s^-2

 

[johnjohn320]

Originally posted by: Broohaha

Originally posted by: Torghn
You need to solve for g, and since g isn't in your equation, you need a different equation.

isnt G a constant?

if that's true then i pwn j000!!

Well, g is -9.8
Big G is, according to my book, 6.67 * 10^-11. I don't even know what the hell big G represents... nor how to find little g without an acceleration.

 

[Torghn]

Originally posted by: johnjohn320

Originally posted by: Broohaha

Originally posted by: Torghn You need to solve for g, and since g isn't in your equation, you need a different equation.

isnt G a constant? if that's true then i pwn j000!!

Well, g is -9.8 Big G is, according to my book, 6.67 * 10^-11. I don't even know what the hell big G represents... nor how to find little g without an acceleration.

Ok, I'll be nice. Wight is a Force. Therefor your first answer is correct (if you solved the equation correctly as I didn't check your math).

 

[johnjohn320]

Originally posted by: Torghn

Originally posted by: johnjohn320

Originally posted by: Broohaha

Originally posted by: Torghn You need to solve for g, and since g isn't in your equation, you need a different equation.

isnt G a constant? if that's true then i pwn j000!!

Well, g is -9.8 Big G is, according to my book, 6.67 * 10^-11. I don't even know what the hell big G represents... nor how to find little g without an acceleration.

Ok, I'll be nice. Wight is a Force. Therefor your first answer is correct (if you solved the equation correctly as I didn't check your math).

Well yeah, weight is a force, but is it the gravitational force? Thanks for being nice btw

 

[Torghn]

Originally posted by: johnjohn320

Originally posted by: Torghn

Originally posted by: johnjohn320

Originally posted by: Broohaha

Originally posted by: Torghn You need to solve for g, and since g isn't in your equation, you need a different equation.

isnt G a constant? if that's true then i pwn j000!!

Well, g is -9.8 Big G is, according to my book, 6.67 * 10^-11. I don't even know what the hell big G represents... nor how to find little g without an acceleration.

Ok, I'll be nice. Wight is a Force. Therefor your first answer is correct (if you solved the equation correctly as I didn't check your math).

Well yeah, weight is a force, but is it the gravitational force? Thanks for being nice btw

Yes, it's the force due to gravity.

 

[Kalpana]

yes..I believe that that weight, which is the force exerted on the satelite is the gravitation force..if I remember right. The reason has..man this was so long ago...to do with what is keeping the satelite in orbit...and I think that it is gravitation that is providing the inward force that can keep the orbiting object in orbit. Okay I am gonna shut up now..but I am pretty sure that weight is the force...however not hundred percent certain.

edit...AHHH NEVERMIND...I am sure he knows better...

 

[CrazyPerson]

here
F=G[(m1m2)/r^2]

G=6.67*10^-11 i think

NOW... CAN SOME ONE PLEASE HELP ME WITH MY BIO QUESTION

 

[johnjohn320]

Originally posted by: Torghn

Originally posted by: johnjohn320

Originally posted by: Torghn

Originally posted by: johnjohn320

Originally posted by: Broohaha

Originally posted by: Torghn You need to solve for g, and since g isn't in your equation, you need a different equation.

isnt G a constant? if that's true then i pwn j000!!

Well, g is -9.8 Big G is, according to my book, 6.67 * 10^-11. I don't even know what the hell big G represents... nor how to find little g without an acceleration.

Ok, I'll be nice. Wight is a Force. Therefor your first answer is correct (if you solved the equation correctly as I didn't check your math).

Well yeah, weight is a force, but is it the gravitational force? Thanks for being nice btw

Yes, it's the force due to gravity.

OK, in that case, I triple checked my numbers (my 3.5 x 10^30 or whatever it was is way off), and now I'm getting exactly twice the answer. Sigh.

 

[CrazyPerson]

Originally posted by: CrazyPerson
here
F=G[(m1m2)/r^2]

G=6.67*10^-11 i think

NOW... CAN SOME ONE PLEASE HELP ME WITH MY BIO QUESTION

HELLOOOOOOO

 

[Kalpana]

haha..BRING ON THE BIO QUESTIONS..that I can answer.

 

[Torghn]

You've got to love google when it can do your homework.

 

[TechnoKid]

Originally posted by: Broohaha
W = G (Me * m) / r^2

...... hmmmm

WGMEMR

wegmmr?
gemwmr?

megwmmmamrmarmwemmgarmagrmawrgamrg

i was lamo when i read this...i think its hilarious to make an accronym for it...think strongbad trying to pronounce it

edit: Post number 666...:Q

 

[Torghn]

holly Crap I didn't know google was this good

 

[Broohaha]

Originally posted by: TechnoKid

Originally posted by: Broohaha W = G (Me * m) / r^2 ...... hmmmm WGMEMR wegmmr? gemwmr?

megwmmmamrmarmwemmgarmagrmawrgamrg i was lamo when i read this...i think its hilarious to make an accronym for it...think strongbad trying to pronounce it edit: Post number 666...:Q

there's no a i that equation, satan

 

[CrazyPerson]

your welcome...
i have conclude that ATOT does not a lot of bio

 

[johnjohn320]

Originally posted by: Torghn
<a class=ftalternatingbarlinklarge href="http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=%28G*%28425+kg%29*%28mass+of+earth%29%29%2F%28radius+of+earth%29%5E2" target=blank>holly Crap I didn't know google was this good</A>

Yes, you posted it twice now within 5 minutes. And both times it was wrong.

I've got the correct answer now, thanks for the help guys.

 

[cliftonite]

Originally posted by: Torghn
<a class=ftalternatingbarlinklarge href="http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=%28G*%28425+kg%29*%28mass+of+earth%29%29%2F%28radius+of+earth%29%5E2" target=blank>holly Crap I didn't know google was this good</A>

whoa, thats cool

 

[Torghn]

Originally posted by: johnjohn320

Originally posted by: Torghn <a class=ftalternatingbarlinklarge href="[L=http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=%28G*%28425+kg%29*%28mass+of+earth%29%29%2F%28radius+of+earth%29%5E2" target=blank search?hl='en&lr=&ie=UTF-8&oe=UTF-8&q=%28G*%28425+kg%29*%28mass+of+earth%29%29%2F%28radius+of+earth%29%5E2"[/L]' www.google.com ]http:>holly Crap I didn't know google was this good</A>

Yes, you posted it twice now within 5 minutes. And both times it was wrong. I've got the correct answer now, thanks for the help guys.

There, Happy?

Actualy they are different. The second time was with words where the first was just numbers which a simple calculator could do.