In which direction of the wave motion do longitude waves transfer energy ?

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

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

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