143345 A block of wood floats in water with $(4 / 5)^{\text {th }}$ of its volume submerged. If the same block is just floats in a liquid. Then find the density of this liquid. (Given density of water $=1000 \mathrm{~kg} \cdot \mathrm{m}^{-3}$ )

143346 In a water container, an aluminum piece of volume $0.5 \mathrm{~m}^{3}$ is lowered through an external force, until it is completely submerged. In another identical water container, a lead piece of same volume was similarly submerged using the same amount of external force. The mass density of lead is 4 times larger than the mass density of the aluminum. If $F_{A}$ and $F_{L}$ are the buoyancy forces acting on aluminum and lead respectively, then which of the following statement is correct?

143348 A raft of wood of mass $120 \mathrm{~kg}$ floats in water. The weight that can be put on the raft to make it just sink, should be $\left(\mathrm{d}_{\text {raft }}=600 \mathrm{~kg} / \mathrm{m}^{3}\right)$

143349 A horizontal pipeline carrying gasoline has a cross-sectional diameter of $5 \mathrm{~mm}$. If the viscosity and density of the gasoline are $6 \times 10^{-3}$ Poise and $720 \mathrm{~kg} / \mathrm{m}^{3}$ respectively, the velocity after which the flow becomes turbulent is

143345 A block of wood floats in water with $(4 / 5)^{\text {th }}$ of its volume submerged. If the same block is just floats in a liquid. Then find the density of this liquid. (Given density of water $=1000 \mathrm{~kg} \cdot \mathrm{m}^{-3}$ )

143346 In a water container, an aluminum piece of volume $0.5 \mathrm{~m}^{3}$ is lowered through an external force, until it is completely submerged. In another identical water container, a lead piece of same volume was similarly submerged using the same amount of external force. The mass density of lead is 4 times larger than the mass density of the aluminum. If $F_{A}$ and $F_{L}$ are the buoyancy forces acting on aluminum and lead respectively, then which of the following statement is correct?

143348 A raft of wood of mass $120 \mathrm{~kg}$ floats in water. The weight that can be put on the raft to make it just sink, should be $\left(\mathrm{d}_{\text {raft }}=600 \mathrm{~kg} / \mathrm{m}^{3}\right)$

143349 A horizontal pipeline carrying gasoline has a cross-sectional diameter of $5 \mathrm{~mm}$. If the viscosity and density of the gasoline are $6 \times 10^{-3}$ Poise and $720 \mathrm{~kg} / \mathrm{m}^{3}$ respectively, the velocity after which the flow becomes turbulent is

143345 A block of wood floats in water with $(4 / 5)^{\text {th }}$ of its volume submerged. If the same block is just floats in a liquid. Then find the density of this liquid. (Given density of water $=1000 \mathrm{~kg} \cdot \mathrm{m}^{-3}$ )

143346 In a water container, an aluminum piece of volume $0.5 \mathrm{~m}^{3}$ is lowered through an external force, until it is completely submerged. In another identical water container, a lead piece of same volume was similarly submerged using the same amount of external force. The mass density of lead is 4 times larger than the mass density of the aluminum. If $F_{A}$ and $F_{L}$ are the buoyancy forces acting on aluminum and lead respectively, then which of the following statement is correct?

143348 A raft of wood of mass $120 \mathrm{~kg}$ floats in water. The weight that can be put on the raft to make it just sink, should be $\left(\mathrm{d}_{\text {raft }}=600 \mathrm{~kg} / \mathrm{m}^{3}\right)$

143349 A horizontal pipeline carrying gasoline has a cross-sectional diameter of $5 \mathrm{~mm}$. If the viscosity and density of the gasoline are $6 \times 10^{-3}$ Poise and $720 \mathrm{~kg} / \mathrm{m}^{3}$ respectively, the velocity after which the flow becomes turbulent is

143345 A block of wood floats in water with $(4 / 5)^{\text {th }}$ of its volume submerged. If the same block is just floats in a liquid. Then find the density of this liquid. (Given density of water $=1000 \mathrm{~kg} \cdot \mathrm{m}^{-3}$ )

143346 In a water container, an aluminum piece of volume $0.5 \mathrm{~m}^{3}$ is lowered through an external force, until it is completely submerged. In another identical water container, a lead piece of same volume was similarly submerged using the same amount of external force. The mass density of lead is 4 times larger than the mass density of the aluminum. If $F_{A}$ and $F_{L}$ are the buoyancy forces acting on aluminum and lead respectively, then which of the following statement is correct?

143348 A raft of wood of mass $120 \mathrm{~kg}$ floats in water. The weight that can be put on the raft to make it just sink, should be $\left(\mathrm{d}_{\text {raft }}=600 \mathrm{~kg} / \mathrm{m}^{3}\right)$

143349 A horizontal pipeline carrying gasoline has a cross-sectional diameter of $5 \mathrm{~mm}$. If the viscosity and density of the gasoline are $6 \times 10^{-3}$ Poise and $720 \mathrm{~kg} / \mathrm{m}^{3}$ respectively, the velocity after which the flow becomes turbulent is