An aluminum sphere is 8.75cm in diameter. What will be its % change in volume if it is heated from30 C to120C?

What will be its % change in volume if it is heated from 30 C to 120 C?

Express your answer to two significant figures and include the appropriate units.

Express your answer using two significant figures.

−12N/m^2.

At such a pressure, how many molecules are there per cm^3 at 8 C?

Express your answer using two significant figures.