Three energy readings are noted in an experiment: ,

PHYSICS · Subjective · A Level · Physics · Measurements and their errors · Measurements and their errors

Problem

Three energy readings are noted in an experiment:

2.5\,\text{kJ}

3.60\times10^{5}\,\text{J}

, and

4.20\times10^{2}\,\text{J}

. Calculate the total energy and express your answer in scientific notation, giving the appropriate number of significant figures.