Posted by **please** on Tuesday, March 6, 2012 at 1:08pm.

Careful measurements of local variations in the acceleration due to gravity can reveal the locations of oil deposits. Assume that the Earth is a uniform sphere of radius 6370 km and density 5500 kg/m3, except that there is a spherical region of radius 1.7 km and density 944 kg/m3, whose center is at a depth of 3.4 km. Suppose you are standing on the surface of the Earth directly above the anomaly with an instrument capable of measuring the acceleration due to gravity with great precision. What is the ratio of the acceleration due to gravity that you measure compared to what you would have measured had the density been 5500 kg/m3 everywhere? (Hint: Think of this as a superposition problem involving two uniform spherical masses, one with a negative density.)

## Answer This Question

## Related Questions

- Physics help please - The space shuttle orbits at a distance of 335 km above the...
- College Physics - When searching for gold, measurements of g can be used find ...
- Physics Problem 6.22 - It can be shown that for a uniform sphere the force of ...
- Physics - It can be shown that for a uniform sphere the force of gravity at a ...
- Physics - It can be shown that for a uniform sphere the force of gravity at a ...
- science - How far away from the earth does acceleration due to gravity become 1...
- Science - It can be shown that for a uniform sphere the force of gravity at a ...
- physics - What is the acceleration due to gravity at a distance of 1.2 Earth ...
- Physics - Suppose the density of the Earth was somehow reduced from its actual ...
- physics - A planet has a radius of about 0.85 times Earth's radius and a mass ...

More Related Questions