143256 A lift pump works at $200 \mathrm{~V}, 10 \mathrm{~A}$. It pumps water at $4^{\circ} \mathrm{C}$ to an average height of $15 \mathrm{~m}$ to fill a tank of volume $3 \mathrm{~m} \times 2 \mathrm{~m} \times 1 \mathrm{~m}$. If $\mathrm{g}=10 \mathrm{~ms}^{-2}$ and the efficiency of the pump is $75 \%$, then the time required to fill the tank is

143259 A mass $m$ slips along the wall of a semispherical surface of radius $R$. The velocity at the bottom of the surface is

143260 A large water tank open to the atmosphere at the top a small hole is made near the bottom of the tank. The speed of the water ejected depends on

143261 A water pump rated $600 \mathrm{~W}$, has an efficiency of $\mathbf{9 5 \%}$. If it is used to raise water through vertical distance of $60 \mathrm{~m}$. The volume of water drawn in 20 minutes is:
[Use density of water $=1000 \mathrm{~kg} \mathrm{~m}^{-3}, \mathrm{~g}=10$ $\left.\mathbf{m} / \mathbf{s}^{2}\right]$

143256 A lift pump works at $200 \mathrm{~V}, 10 \mathrm{~A}$. It pumps water at $4^{\circ} \mathrm{C}$ to an average height of $15 \mathrm{~m}$ to fill a tank of volume $3 \mathrm{~m} \times 2 \mathrm{~m} \times 1 \mathrm{~m}$. If $\mathrm{g}=10 \mathrm{~ms}^{-2}$ and the efficiency of the pump is $75 \%$, then the time required to fill the tank is

143259 A mass $m$ slips along the wall of a semispherical surface of radius $R$. The velocity at the bottom of the surface is

143260 A large water tank open to the atmosphere at the top a small hole is made near the bottom of the tank. The speed of the water ejected depends on

143261 A water pump rated $600 \mathrm{~W}$, has an efficiency of $\mathbf{9 5 \%}$. If it is used to raise water through vertical distance of $60 \mathrm{~m}$. The volume of water drawn in 20 minutes is:
[Use density of water $=1000 \mathrm{~kg} \mathrm{~m}^{-3}, \mathrm{~g}=10$ $\left.\mathbf{m} / \mathbf{s}^{2}\right]$

143256 A lift pump works at $200 \mathrm{~V}, 10 \mathrm{~A}$. It pumps water at $4^{\circ} \mathrm{C}$ to an average height of $15 \mathrm{~m}$ to fill a tank of volume $3 \mathrm{~m} \times 2 \mathrm{~m} \times 1 \mathrm{~m}$. If $\mathrm{g}=10 \mathrm{~ms}^{-2}$ and the efficiency of the pump is $75 \%$, then the time required to fill the tank is

143259 A mass $m$ slips along the wall of a semispherical surface of radius $R$. The velocity at the bottom of the surface is

143260 A large water tank open to the atmosphere at the top a small hole is made near the bottom of the tank. The speed of the water ejected depends on

143261 A water pump rated $600 \mathrm{~W}$, has an efficiency of $\mathbf{9 5 \%}$. If it is used to raise water through vertical distance of $60 \mathrm{~m}$. The volume of water drawn in 20 minutes is:
[Use density of water $=1000 \mathrm{~kg} \mathrm{~m}^{-3}, \mathrm{~g}=10$ $\left.\mathbf{m} / \mathbf{s}^{2}\right]$

143256 A lift pump works at $200 \mathrm{~V}, 10 \mathrm{~A}$. It pumps water at $4^{\circ} \mathrm{C}$ to an average height of $15 \mathrm{~m}$ to fill a tank of volume $3 \mathrm{~m} \times 2 \mathrm{~m} \times 1 \mathrm{~m}$. If $\mathrm{g}=10 \mathrm{~ms}^{-2}$ and the efficiency of the pump is $75 \%$, then the time required to fill the tank is

143259 A mass $m$ slips along the wall of a semispherical surface of radius $R$. The velocity at the bottom of the surface is

143260 A large water tank open to the atmosphere at the top a small hole is made near the bottom of the tank. The speed of the water ejected depends on

143261 A water pump rated $600 \mathrm{~W}$, has an efficiency of $\mathbf{9 5 \%}$. If it is used to raise water through vertical distance of $60 \mathrm{~m}$. The volume of water drawn in 20 minutes is:
[Use density of water $=1000 \mathrm{~kg} \mathrm{~m}^{-3}, \mathrm{~g}=10$ $\left.\mathbf{m} / \mathbf{s}^{2}\right]$