The equation, e = mc2, shows that mass and energy are different forms of the same thing and can be interconverted. true false

What are the percent by mass of copper in penny lab

Identify the electromagnets with poles that are reversed from the electromagnet shown above

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.