One property that makes electromagnetic waves differ from other types of waves is that they can

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

Which of the following forces require physical contact? tension air resistance friction magnetic force applied force

2. circled insects have mutations, or changes to their dna. how many of the offspring insects in this generation have mutations?