A compound-complex sentence combines the compound and the complex sentence. It contains two or more complete sentences joined by one or more of the following words: for, and, nor, but, or, yet, so, and at least one incomplete sentence.
Max Karl Ernst Ludwig Planck, FRS[2] (/plÉËÅk/;[3] 23 April 1858 â 4 October 1947) was a German theoretical physicist whose discovery of energy quanta won him the Nobel Prize in Physics in 1918.[4]
(Planck was a German physicist who studiedthe electromagnetic spectrum, and how light interacts with matter.) Consider how factors arerelated in this equation; if the frequency is doubled, so is the energy. If the frequency is de-creased by half (50%), energy is decreased by half.