beth12345
  • beth12345
how to find the gravitational field strength from the earth when no mass is given only distance(200km, 2000km and 50km)?
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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beth12345
  • beth12345
the answer I'm given for the 200 km distance is 9.2N/kg, I was told to use \[F= G \times \left[\begin{matrix}m _{1} \times m _{2} /\\ r ^{2} \end{matrix}\right]\] for the equation but I don't understand what the\[m _{1}\]and\[m _{2}\]are for, I am also not given the answer for the other distances
anonymous
  • anonymous
since you know the force at distance 200Km so put it into the newton's gravitational force and calculate \[m_1\times m_2\] then to find out the force between m1 and m2 you just need distance nothing else...
beth12345
  • beth12345
do you know what the \[m _{1}\] and \[m_{2}\] stand for?

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anonymous
  • anonymous
mass of the two particles which is under our consideration, i.e., between which we are finding the force.
beth12345
  • beth12345
what about if i'm not given the force or the mass of the 2000km and 50km distances?
anonymous
  • anonymous
since \[F=G [m_1 \times m_2]/{r^2}\] and you know G & \[m_1 \times m_2\] then when you put r=2000Km then you get force between m1 and m2 at distance 2000km.
beth12345
  • beth12345
thanks, I got it now :)
anonymous
  • anonymous
welcome.

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