What is a primary source? A. A textbook that explains a wide range of science topics
B. A technical article written by an experimenter
C. A newspaper article about a recent discovery
D. A summary of research written for an average reader

Diamond will scratch quartz. true or false

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

Which best describes the difference between internal and thermal energy?