What is the volume of an object with a mass of 220g and a desnisty of 55cm3?

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

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.