anonymous
  • anonymous
a) Calculate the amount of force that the moon exerts on 1kg of earth at earths center. b) Calculate amount of force that the moon exerts on 1kg of water on the side of the earth nearest to the moon. c) Calculate amount of force the moon exerts on 1kg of water on the side of earth farthest from the moon. Please help, wasnt here also for these problems.
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
JoannaBlackwelder
  • JoannaBlackwelder
\[F=\frac{ Gm _{1} m _{2}}{ d }\]
JoannaBlackwelder
  • JoannaBlackwelder
G = 6.673 x 10^-11 N m^2/kg^2
JoannaBlackwelder
  • JoannaBlackwelder
d is the distance between the centers of the two objects

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anonymous
  • anonymous
Ok, but I dont really understand m1 and m2, what numbers go in for those two?
JoannaBlackwelder
  • JoannaBlackwelder
mass of the two bodies (i.e. mass of the moon)
anonymous
  • anonymous
Oh so G times the mass of the moon divided by distance, but the thing is it doesnt really give you the distance
JoannaBlackwelder
  • JoannaBlackwelder
Well, G times mass of the moon times mass of the 1 kg of earth divided by the distance from the center of the earth to the center of the moon (you have to look up those distances)
JoannaBlackwelder
  • JoannaBlackwelder
|dw:1432877912313:dw|
JoannaBlackwelder
  • JoannaBlackwelder
|dw:1432877943246:dw|
anonymous
  • anonymous
Ohhhh ok, but how would you find the distance when it asks: "Calculate... on the side of the earth nearest to the moon" and also "...farthest to the moon" for the second and third question it doesnt give a specific distance.
JoannaBlackwelder
  • JoannaBlackwelder
From the center of the earth is radius of the earth + distance between earth and moon + radius of the moon|dw:1432878133979:dw|
JoannaBlackwelder
  • JoannaBlackwelder
I know the pic is bad, but does that make sense?
anonymous
  • anonymous
Well yea, the pic is good btw, but anyways, the only thing that ill really need to do then is to just plug in the numbers, right? Nothing else to it? And one more thing, when it says "on the side of earth" how would you calculate where that distance would be too?
JoannaBlackwelder
  • JoannaBlackwelder
Oh good. :-) That's it, just make sure that your units are consistent (kg for mass and m for distance.
JoannaBlackwelder
  • JoannaBlackwelder
When it is on the side of the earth closer to the moon, that would not include the radius of the earth.
JoannaBlackwelder
  • JoannaBlackwelder
And the side of the earth farther from the moon would be twice the radius of the earth (or the diameter)
anonymous
  • anonymous
Oh yesss ok I get it now, thanks so much! You saved me half the assignment that i didnt know how it worked, so thank you, lol I might need more help with other questions too cause I really dont understand it, but only if your up for it.
JoannaBlackwelder
  • JoannaBlackwelder
Awesome. You're very welcome! And I'll be up a little while longer. Just tag me. :-)

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