In addition to its weight,what force is needed to lift a wire ring of radius 2.0 cm from the surface of blood plasma? The surface tension of blood plasma is 7.3 × 10¯²N/m. A)1.8E+1 N B)3.7E-2 N C)9.2E-3 N D)1.8E-2 N

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The force needed to lift the wire ring is calculated using the formula F = 2πrγ, where r is the radius and γ is the surface tension. Substituting the given values, F = 2π(0.02 m)(7.3 × 10¯² N/m) = 1.8 × 10¯² N.

In Addition to Its Weight,what Force Is Needed to Lift