How should tika most likely describe this relationship between force and distance to her study group?

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block

The material that keeps its new shape after it is stretched is called?

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.