a solid aluminum ingot weighs 89N in the air. what is its volume? (b) the ingot is suspended from a rope and totally immersed in water. What is the tension in the rope?

Answer 1

VolumeinAir=Mass/density
mass=weight/g
Now in the water, it has the same mass, and the same volume. But it has a force of bouyancy equal to the weight of the displaced water.

bouyancy=densitywater*volume*g

weight in water=89N-bouyancyforce