146394 An atom bomb weighing \(1 \mathrm{~kg}\) explodes releasing \(9 \times 10^{13} \mathrm{~J}\) of energy. 'What percentage of mass is converted into energy?

146368 A constant horizontal force \(\vec{F}\) of magnitude 10 \(\mathrm{N}\) is applied to a block \(\mathrm{A}\) and this produces an acceleration of magnitude \(20 \mathrm{~m} / \mathrm{s}^{2}\). If this block \(A\) is then kept against another block \(B\) of mass \(1.5 \mathrm{~kg}\) as shown in figure and a force \(F^{\prime}\) of \(20 \mathrm{~N}\) is applied, find the force on the block \(B\). Neglect friction.
\(\mathrm{F}^{\prime} \rightarrow \mathrm{A} \mathrm{B}\)

146390 A person of \(70 \mathrm{~kg}\) mass is lifted by a helicopter with the help of rope, hanging from it. If the helicopter is rising up with an acceleration 4 \(\mathrm{ms}^{-2}\) the tension in the rope is (taking \(\mathrm{g}=10 \mathrm{~ms}^{-}\) )

146376 A \(1 \mathrm{~kg}\) block and a \(0.5 \mathrm{~kg}\) block move together on a horizontal frictionless surface. Each block exerts a force of \(6 \mathrm{~N}\) on the other. The block move with a uniform acceleration of

146394 An atom bomb weighing \(1 \mathrm{~kg}\) explodes releasing \(9 \times 10^{13} \mathrm{~J}\) of energy. 'What percentage of mass is converted into energy?

146368 A constant horizontal force \(\vec{F}\) of magnitude 10 \(\mathrm{N}\) is applied to a block \(\mathrm{A}\) and this produces an acceleration of magnitude \(20 \mathrm{~m} / \mathrm{s}^{2}\). If this block \(A\) is then kept against another block \(B\) of mass \(1.5 \mathrm{~kg}\) as shown in figure and a force \(F^{\prime}\) of \(20 \mathrm{~N}\) is applied, find the force on the block \(B\). Neglect friction.
\(\mathrm{F}^{\prime} \rightarrow \mathrm{A} \mathrm{B}\)

146390 A person of \(70 \mathrm{~kg}\) mass is lifted by a helicopter with the help of rope, hanging from it. If the helicopter is rising up with an acceleration 4 \(\mathrm{ms}^{-2}\) the tension in the rope is (taking \(\mathrm{g}=10 \mathrm{~ms}^{-}\) )

146376 A \(1 \mathrm{~kg}\) block and a \(0.5 \mathrm{~kg}\) block move together on a horizontal frictionless surface. Each block exerts a force of \(6 \mathrm{~N}\) on the other. The block move with a uniform acceleration of

146394 An atom bomb weighing \(1 \mathrm{~kg}\) explodes releasing \(9 \times 10^{13} \mathrm{~J}\) of energy. 'What percentage of mass is converted into energy?

146368 A constant horizontal force \(\vec{F}\) of magnitude 10 \(\mathrm{N}\) is applied to a block \(\mathrm{A}\) and this produces an acceleration of magnitude \(20 \mathrm{~m} / \mathrm{s}^{2}\). If this block \(A\) is then kept against another block \(B\) of mass \(1.5 \mathrm{~kg}\) as shown in figure and a force \(F^{\prime}\) of \(20 \mathrm{~N}\) is applied, find the force on the block \(B\). Neglect friction.
\(\mathrm{F}^{\prime} \rightarrow \mathrm{A} \mathrm{B}\)

146390 A person of \(70 \mathrm{~kg}\) mass is lifted by a helicopter with the help of rope, hanging from it. If the helicopter is rising up with an acceleration 4 \(\mathrm{ms}^{-2}\) the tension in the rope is (taking \(\mathrm{g}=10 \mathrm{~ms}^{-}\) )

146376 A \(1 \mathrm{~kg}\) block and a \(0.5 \mathrm{~kg}\) block move together on a horizontal frictionless surface. Each block exerts a force of \(6 \mathrm{~N}\) on the other. The block move with a uniform acceleration of

146394 An atom bomb weighing \(1 \mathrm{~kg}\) explodes releasing \(9 \times 10^{13} \mathrm{~J}\) of energy. 'What percentage of mass is converted into energy?

146368 A constant horizontal force \(\vec{F}\) of magnitude 10 \(\mathrm{N}\) is applied to a block \(\mathrm{A}\) and this produces an acceleration of magnitude \(20 \mathrm{~m} / \mathrm{s}^{2}\). If this block \(A\) is then kept against another block \(B\) of mass \(1.5 \mathrm{~kg}\) as shown in figure and a force \(F^{\prime}\) of \(20 \mathrm{~N}\) is applied, find the force on the block \(B\). Neglect friction.
\(\mathrm{F}^{\prime} \rightarrow \mathrm{A} \mathrm{B}\)

146390 A person of \(70 \mathrm{~kg}\) mass is lifted by a helicopter with the help of rope, hanging from it. If the helicopter is rising up with an acceleration 4 \(\mathrm{ms}^{-2}\) the tension in the rope is (taking \(\mathrm{g}=10 \mathrm{~ms}^{-}\) )

146376 A \(1 \mathrm{~kg}\) block and a \(0.5 \mathrm{~kg}\) block move together on a horizontal frictionless surface. Each block exerts a force of \(6 \mathrm{~N}\) on the other. The block move with a uniform acceleration of