Explanation:
1. draught
2. Parallax error
3. angle if displacement
4. air resistance or any form of obstruction
Answer:
3d shape is the shape of solid
Answer:

Explanation:
From the question we are told that:
Pressure of 
Bottle cap area 
Generally the equation for Resultant pressure
is give as is mathematically given by

Where



Generally the equation for Force exerted by screw F is give as is mathematically given by

