Aparticular guitar string is supposed to vibrate at

The phrase to every action there is an equal and opposite reaction is

20 points- which statement about egyptian, chinese, viking, mocha, and roman jewelry are true? choose all that apply. a. they were made by gluing colored plastic to metal chains, bands, disks. b. they adorned the human body, something people have done since ancient times. c. they contained symbolic images often. d. they were personalizes with unique images instead of standard images made using formulas. pls

The paintings in the lascaux cave were discovered by who?