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D4b34r5
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Homework Statement
(a) Find the altitude above the Earth's surface where Earth's gravitational field strength would be two-thirds of its value at the surface. Assume re = 6.371 multiplied by 10^3 km.
wrong check mark km
(b) Find the altitude above the Earth's surface where Earth's gravitational field strength would be one-third of its value at the surface.
wrong check mark km
[Hint: First find the radius for each situation; then recall that the altitude is the distance from the surface to a point above the surface. Use proportional reasoning.]
Homework Equations
F = GMm/r^2
The Attempt at a Solution
I have tried it and I am either calculating wrong or setting it up wrong... or both. One problem I see with the formula is that it doesn't have the mass of the second object.. so I don't know what to do there.
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