Albert Einstein's most famous equation is E=mc2, where E is the energy of an object (in joules), m is the mass of an object (in kilograms), and c is the speed of light (in meters per second). A hydrogen atom has 15.066×10^−11 joule of energy and a mass of 1.674 × 10^−27 kilogram. What is the speed of light? Write your answer in scientific notation.