Question

1. Liquid mercury and solid uranium have densities of 13,560 and 19,000 kg per cubic meter, respectively. A disk made of uranium, of mass 8 kg, is fully submerged in liquid mercury. (Assume the acceleration of gravity is 10 m/s².) The disk experiences an upward buoyant force of ___ N.

2. The density of water and wood are 1,000 and 530 kg per cubic meter, respectively. Using your finger, you push a 0.8 kg block of wood downward until 3/4 of its volume is submerged in water. (Assume the acceleration of gravity is 10 m/s².) The block experiences an upward buoyant force of ___ N

Answer 1