after an initial push, a sled begins to move downhill at 1 m/a. a few seconds later it's kinetic energy. has increased. the sled now has 64 times more kinetic energy than it did right after the push. how fast is it going

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

How do you determine the percent yield of a chemical reaction

How is electrolysis most commonly used to produce an energy source? a - splitting water molecules produces oxygen, which organisms breathe to fuel their bodies. b - splitting water molecules produces hydrogen gas, which is used to power machines through hydrogen fuel cells. c - splitting carbon dioxide molecules produces coal, a form of carbon that can be burned to produce heat. d - splitting carbon dioxide molecules produces natural gas, which can be burned to generate electricity in power plants.