Question

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.

Answer 1

15.066 x 10^-11 = 1.674 x 10^-27 c^2

sqrt ( 15.066 x 10^-11/1.674x10^-27) = c = sqrt (9 x 10^16) = 3.00 x 10^8 m/s

Answer 2

Well you have all of the ingredients to substitute into the equation and solve for c

Explanation:

15.066 x 10^-11 = 1.674 x 10^-27 c^2

sqrt ( 15.066 x 10^-11/1.674x10^-27) = c = sqrt (9 x 10^16) = 3.00 x 10^8 m/s