143369 An engine pumps out water continuously through a hose with a velocity $v$. If $m$ is the mass per unit length of the water jet, the rate at which the kinetic energy is imparted to water is

143370 Eight drops of a liquid of density $\rho$ and each of radius a are falling through air with a constant velocity $3.75 \mathrm{cms}^{-1}$. When the eight drops coalesce to form a single drop the terminal velocity of the new drop will be

143371 An incompressible non viscous fluid flows steadily through a cylindrical pipe which has radius $2 R$ at point $A$ and radius $R$ at point $B$ farther along the flow direction. If the velocity of the fluid at point $A$ is $V$, its velocity at the point $B$ will be

143372 A horizontal pipe of cross - sectional diameter 5 cm carries water at a velocity of $4 \mathrm{~m} / \mathrm{s}$. The pipe is connected to a smaller pipe with a crosssectional diameter $4 \mathrm{~cm}$. The velocity of water through the smaller pipe is :

143373 A rain drop of radius $r$ is falling through air starting from rest. The work done by all the forces on the drop, when it attains terminal velocity, is proportional to

143369 An engine pumps out water continuously through a hose with a velocity $v$. If $m$ is the mass per unit length of the water jet, the rate at which the kinetic energy is imparted to water is

143370 Eight drops of a liquid of density $\rho$ and each of radius a are falling through air with a constant velocity $3.75 \mathrm{cms}^{-1}$. When the eight drops coalesce to form a single drop the terminal velocity of the new drop will be

143371 An incompressible non viscous fluid flows steadily through a cylindrical pipe which has radius $2 R$ at point $A$ and radius $R$ at point $B$ farther along the flow direction. If the velocity of the fluid at point $A$ is $V$, its velocity at the point $B$ will be

143372 A horizontal pipe of cross - sectional diameter 5 cm carries water at a velocity of $4 \mathrm{~m} / \mathrm{s}$. The pipe is connected to a smaller pipe with a crosssectional diameter $4 \mathrm{~cm}$. The velocity of water through the smaller pipe is :

143373 A rain drop of radius $r$ is falling through air starting from rest. The work done by all the forces on the drop, when it attains terminal velocity, is proportional to

143369 An engine pumps out water continuously through a hose with a velocity $v$. If $m$ is the mass per unit length of the water jet, the rate at which the kinetic energy is imparted to water is

143370 Eight drops of a liquid of density $\rho$ and each of radius a are falling through air with a constant velocity $3.75 \mathrm{cms}^{-1}$. When the eight drops coalesce to form a single drop the terminal velocity of the new drop will be

143371 An incompressible non viscous fluid flows steadily through a cylindrical pipe which has radius $2 R$ at point $A$ and radius $R$ at point $B$ farther along the flow direction. If the velocity of the fluid at point $A$ is $V$, its velocity at the point $B$ will be

143372 A horizontal pipe of cross - sectional diameter 5 cm carries water at a velocity of $4 \mathrm{~m} / \mathrm{s}$. The pipe is connected to a smaller pipe with a crosssectional diameter $4 \mathrm{~cm}$. The velocity of water through the smaller pipe is :

143373 A rain drop of radius $r$ is falling through air starting from rest. The work done by all the forces on the drop, when it attains terminal velocity, is proportional to

143369 An engine pumps out water continuously through a hose with a velocity $v$. If $m$ is the mass per unit length of the water jet, the rate at which the kinetic energy is imparted to water is

143370 Eight drops of a liquid of density $\rho$ and each of radius a are falling through air with a constant velocity $3.75 \mathrm{cms}^{-1}$. When the eight drops coalesce to form a single drop the terminal velocity of the new drop will be

143371 An incompressible non viscous fluid flows steadily through a cylindrical pipe which has radius $2 R$ at point $A$ and radius $R$ at point $B$ farther along the flow direction. If the velocity of the fluid at point $A$ is $V$, its velocity at the point $B$ will be

143372 A horizontal pipe of cross - sectional diameter 5 cm carries water at a velocity of $4 \mathrm{~m} / \mathrm{s}$. The pipe is connected to a smaller pipe with a crosssectional diameter $4 \mathrm{~cm}$. The velocity of water through the smaller pipe is :

143373 A rain drop of radius $r$ is falling through air starting from rest. The work done by all the forces on the drop, when it attains terminal velocity, is proportional to

143369 An engine pumps out water continuously through a hose with a velocity $v$. If $m$ is the mass per unit length of the water jet, the rate at which the kinetic energy is imparted to water is

143370 Eight drops of a liquid of density $\rho$ and each of radius a are falling through air with a constant velocity $3.75 \mathrm{cms}^{-1}$. When the eight drops coalesce to form a single drop the terminal velocity of the new drop will be

143371 An incompressible non viscous fluid flows steadily through a cylindrical pipe which has radius $2 R$ at point $A$ and radius $R$ at point $B$ farther along the flow direction. If the velocity of the fluid at point $A$ is $V$, its velocity at the point $B$ will be

143372 A horizontal pipe of cross - sectional diameter 5 cm carries water at a velocity of $4 \mathrm{~m} / \mathrm{s}$. The pipe is connected to a smaller pipe with a crosssectional diameter $4 \mathrm{~cm}$. The velocity of water through the smaller pipe is :

143373 A rain drop of radius $r$ is falling through air starting from rest. The work done by all the forces on the drop, when it attains terminal velocity, is proportional to