Which energy value is not $2400\,\text{J}$?
- Athe decrease in gravitational potential energy of a body of mass $60\,\text{kg}$ when it moves vertically downwards through $40\,\text{m}$ near the Earth’s surface
- Bthe energy transferred in $15\,\text{s}$ by a machine of power $160\,\text{W}$
- Cthe kinetic energy of a body of mass $12\,\text{kg}$ moving at a speed of $20\,\text{m s}^{-1}$
- Dthe work done by a gas expanding against a constant external pressure of $120\,\text{kPa}$ when its volume increases by $0.020\,\text{m}^3$