Which component of a galaxy is found in the space between the stars and gives the appearance of bright, colorful clouds?(2 points) 1. Clouds
2. Gas
3. Object
4. Star

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?

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

Asystematic approach to problem solving is called a (an)