A uniform round tabletop of diameter 40 m and mass 50.0 kg rests on massless, evenly spaced legs of length 10 m and spacing 30 m
A carpenter sits on the edge of the table What is the maximum mass of the carpenter such that table remains upright ? Assume that the
force exerted by the carpenter on the table is vertical and at the edge of the table.
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Gauss's theorem states that total electric flux through a closed surface enclosing a charge is 1/ε 0 times of the total charge enclosed by the surface ,
ϕ=Q/ε 0
It is clear that only charge q 2 and q 4
are enclosed by the Gaussian surface therefore only these two charges will contribute to electric flux through the sphere .
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