A scale reads 342 N when a piece of nickel is hanging from it. What does it read (in N) when it is lowered so that the nickel is submerged in water?

Answer 1

So Bob H., (again!)

You need gravity constant (g), the density of nickel (8.9 g/cc), and the density of water (use 1.0 g/cc unless otherwise indicated). From the given force, work backwards to the mass, then to the volume, then to the weight bouyancy of that volume of water. Subtract that, and viola<!

-- Cheers, --Mr. d.