Why do the astronauts float inside space stations?

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 determines the amount of inertia an object has

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?