During a specific scientific observation sequence, a spacecraft's Radioisotope Thermoelectric Generator (RTG) releases a total of 18.4 kJ of energy from nuclear decay.
Of this total energy input, 15.1 kJ is wasted as thermal energy radiated directly into deep space.
Calculate the useful electrical energy transferred to the spacecraft's instruments during this sequence.
82 exam-style questions on Edexcel GCSE Physics 3.1 Energy stores and calculations. Each one has a worked solution and a mark scheme showing where the marks go.