Which source is considered a primary source of scientific information? - an original research article in a scientific journal -a report about a new scientific discovery in the newspaper -a book that compiles important new research findings -a public lecture at a museum given by the scientist who did the research

Answer;

-An original research article in a scientific journal

Explanation;

-Sources are considered primary, secondary, or tertiary depending on the originality of the information presented and their proximity or how close they are to the source of information.

-Primary sources are original materials/information on which other research is based. It includes journal articles of original research, conference papers, dissertations, technical reports, and patents. Primary sources are also sets of data, such as health statistics, which have been tabulated, but not interpreted.

-The Journals or Periodicals are the main type of publication in which scientific research is reported. May be published by learned societies or by commercial publishers.

c. 7/3

step-by-step explanation:

a rational number is like pi- it is a repeating decimal.

a. is -1.8

b. 2.236068

c. 2.3333333333333333333

d.   is 3

i hope that ! =)

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more