But the Earth isn't a hollow sphere, it's a solid sphere. Look at these: Figure 14.22 (http://www.kgarbageij-iitjee.com/gravitational-force-between-particle-and-spherical-mass)
or second page on (http://courses.physics.northwestern.edu/Phyx125/Gravity%20Inside%20A%20Spherical%20Shell.pdf )
Right, ok so let's say you get through that 3000 miles of styrofoam and are now at the styrofoam/core boundary. . . once you start digging into the core, doesn't the force of gravity begin to decrease then? In this case sure it is still increasing while you go from the surface into the...
What causes it to not decrease monotonically? Why would the gravitational acceleration be greater within the Earth than it would be on the surface? Isn't the mass of the Earth now above you pulling on you and therefore decreasing the gravitational attraction toward the center of the earth?
Gravity moving toward the center of the Sun??
Ok can someone tell me if I am wrong in my understanding here (in a heated debate with a physics professor) : As you move from the surface of the sun to the center, does the force of gravity increase or decrease and why? The point I am trying to...