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Q: What is the hollow sphere of cells that expand and contract with each breath?
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Gravitation Force inside a sphere?

The gravitational force inside a hollow sphere is zero. In a non-hollow sphere of uniform composition, the gravitational force varies inversely with the distance from the center.


Where are charges located on a hollow sphere?

If the sphere is conducting, all the charge is distributed uniformly on the outer surface of the sphere.


How do you identify the same looking balls with different materials without nondestructive test?

This is common interview question. A candidate who is asked this question is expected to come-up with as many alternative solutions as possible, while covering a lot of engineering and scientific fundamentals.Here are some I came up with:Suppose you have a plate, one hollow and one normal, of the same material. If you heat both of them, they would expand at the same rate. The hollow plate expands as if the hollow part had the same material in it. But the same does not apply to spheres, because of the pressure of air inside the sphere. So the hollow sphere would expand more and contract more than the normal sphere. (The difference though negligible, can theoretically work).Now, if the balls/spheres are of different materials, we can use any one of plethora of Non-Destructive Testing methodologies When a sphere is manufactured, it is tested if it has any air-bubbles using such test.Use Eddy-current testing if both are conductors of electricity.Use Ultra-sonic testing. (Works for all)


Is hollow an adjective?

Yes, it can be (a hollow sphere, a hollow sound). The word hollow can also be a noun, meaning a gap, void, or a small valley.


What is the shape of a tenis ball?

a 44mm sphere that is hollow


Can a hollow sphere be manufactured by casting?

true


What is cancave?

*concave . curved like a segment of the interior of a circle or hollow sphere; hollow and curved


How many sides does sphere have?

A sphere has one side. Not tricky! Unless the sphere is hollow, which would have two sides, inside and outside.


What do Several electrons are placed on a hollow metal sphere do?

become uniformly distributed on the sphere's outer surface.


How many curved surface does a sphere have?

One if it is solid, two if it is hollow


What is a solid figure with no edges and two faces?

A hollow sphere.


How do you charge metallic hollow sphere?

touch it with a charged object....