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The observable universe is ~93 billion light-years across ā and it's still expanding.
Did you know?
The observable universe is ~93 billion light-years across ā and it's still expanding.
A thin flat circular disc of radius is placed gently over the surface of water. If surface tension of water is N/m then the excess force required to take it away from the surface is:
mN
N
mN
N
To solve this problem, we need to calculate the excess force required to detach a thin flat circular disc from the surface of water.Given:ā¢ Radius of the disc mā¢ Surface tension of water
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