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Physics 13 Online
OpenStudy (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.

OpenStudy (joannablackwelder):

\[F=\frac{ Gm _{1} m _{2}}{ d }\]

OpenStudy (joannablackwelder):

G = 6.673 x 10^-11 N m^2/kg^2

OpenStudy (joannablackwelder):

d is the distance between the centers of the two objects

OpenStudy (anonymous):

Ok, but I dont really understand m1 and m2, what numbers go in for those two?

OpenStudy (joannablackwelder):

mass of the two bodies (i.e. mass of the moon)

OpenStudy (anonymous):

Oh so G times the mass of the moon divided by distance, but the thing is it doesnt really give you the distance

OpenStudy (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)

OpenStudy (joannablackwelder):

|dw:1432877912313:dw|

OpenStudy (joannablackwelder):

|dw:1432877943246:dw|

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