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Its an example of a universal law because gravity occurs in every place of the world
Hoped I helped!!!!!
To find this simply draw a triangle with the hypotenuse being 15 and the angle between the hypotenuse and bottom leg is 20. The horizontal component is the horizontal leg. to find this you would use cos and then solve for the bottom leg.
When you do, you get 15cos(20)
We know that pressure is equal to the relation between force applied perpendicular to a certain area.
If we express area we get:
The pressure is decrease proportional to the area.
Hope this helps.
r3t40