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Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

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 movement of electrons between atoms is called an