Fluids

A fluid flows through a pipe with varying cross-sectional areas. At point A, the pressure is $P_A$ and the velocity is $v_A$. At point B, the pressure is $P_B$ and the velocity is $v_B$. If no external work is done on the fluid between points A and B, and assuming the fluid is incompressible and inviscid, what is the w...

A cube with side length 0.1 m is fully submerged in water (density 1000 kg/m³). What is the buoyant force on the cube?

Which of the following best describes how internal interactions between fluid particles contribute to macroscopic fluid behavior?

Which of the following statements best describes Archimedes' Principle?

A 0.5 $m^3$ object is submerged in water (density 1000 kg/$m^3$). What is the buoyant force acting on the object?

A raft is made of wood (density 600 kg/$m^3$) and has a volume of 2 $m^3$. If the raft is floating in water (density 1000 kg/$m^3$), what is the maximum weight that the raft can carry before it starts to sink?

Consider a system of interacting fluid particles in a viscous fluid. If the net external force on a specific particle is zero, but the particle is still moving, what can be said about the forces from surrounding particles?

What is the primary cause of the buoyant force on an object submerged in a fluid?

A wooden block with density $\rho_{wood}$ and volume $V$ is floating in a fluid with density $\rho_{fluid}$. What fraction of the block's volume is submerged?

A fluid particle in a pipe experiences a net force. According to Newton's laws, what must be true about the particle?