Asked by Anonymous
A metallic wire of density d floats horizontally in water . The maximum radius of wire so that it may not sink in water will be ??
Answers
Answered by
bobpursley
Are you intending to ignore surface tension?
I assume not.
surface tension=force/length
force=mg=g*PI*r^2*d*length
let mu be the value of surface tension for water, and as it varies with temperature, look that up.
mu=PIr^2*length*g/length
solve for r.
I assume not.
surface tension=force/length
force=mg=g*PI*r^2*d*length
let mu be the value of surface tension for water, and as it varies with temperature, look that up.
mu=PIr^2*length*g/length
solve for r.
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