the mass of a gas is dertemined by using a method of freezing it in water. The mass of water before mixing with a gas was measured to be 5kg. Considering the sunny environment, it causes the water to evaporate by 0.25%.Then the gas and water were mixed together and put on balance. The new mass was found to be 6.5kg. Calculate the mass of the added gas?

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.

Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.