What is the appropriate symbol for an isotope of calcium-42 corresponding to the isotope notation a/z x .

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

No copying 15 pts how does a free-body diagram tell you about the net force on an object?

Fred is studying a substance that is made out of only one element. this means that