The science that deals with the study of the stuff that makes up the universe is chemistry? ?

What do electromagnetic waves carry? how are they produced through which media can they move? where do they transfer energy? what do they not transfer? what do mechanical waves carry? how are they produced? through which media can they move? where do they transfer energy? what do they not transfer?

Technician a says that you should never jump-start a frozen battery. technician b says that a frozen battery can explode, causing injury, when jump-started. who is correct?

What is the solution to the problem expressed to the correct number of significant figures? (102,900 ÷ 12) + (170 × 1.27) = ? a. 8,790 b. 8,790.9 c. 8,791 d. 8,800