How did Feynman's theory of quantum electrodynamics improve upon earlier theories? by incorporating one theory into another to explain the interconnection of electricity, magnetism, and light,

by explaining how different properties can change function and form based on their relationships with other properties

by replacing quantum mechanics with a totally different theory about how electricity and magnetism together create light

by identifying additional forces in nature, electricity and magnetism, that work in conjunction with the forces of gravity

Ronald sees that his employer's stock has grown from $20 a share to $60 a share this year, while most stocks have seen only 5% growth. his employer offers to let him convert a large portion of his salary into stock options. what is not a valid reason to turn down the stock offer? select the best answer from the choices provided. a. stocks with high returns have high volatility, and ronald's company may not grow further. b. ronald may be taxed more for capital gains than he would be for employment income. c. stock options are illiquid, and ronald may not be able to use them to pay for unexpected bills. d. ronald would be committing stock fraud if he exercises the options.

Who is not a member of rome’s second triumvirate?

How did the man from "to build a fire" put his life in danger?