Twenty (20.0) mL of argon gas is stored at STP. If the temperature and pressure are both doubled, what is the new volume?

Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?