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This is a model for the effect of distance on the strength of a gravitational field. The thickness of the layer resembles the gravitational force and the distance between the sprayer and the canvas resembles the distance between the two massive objects. a The paint sprayer can spraypaint a 1 mm thick layer on a canvas from a distance (r) of 1 meter. If the distance is doubled, what will the thickness of the layer of paint be?

0.25 mm
2 mm
4 mm
0.5 mm​

This Is A Model For The Effect Of Distance On The Strength Of A Gravitational Field The Thickness Of The Layer Resembles The Gravitational Force And The Distan class=

Sagot :

Answer:

.25 is correct

The diagram shows that for a given solid angle Ω the area enclosed is proportional to R^2 - so doubling R will cause an increase of 4 in the enclosed area

V(volume) = Area * thickness

Example:

For a sphere Ω = 4 pi R^2 / R^2 = 4 pi     the total solid angle for a sphere

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