Consider vector A⃗ with components Ax and Ay. Derive an expression, in terms of Ax and Ay, for the components of B⃗ (Bx and By) if B⃗ satisfies the vector equation A⃗ + 4B⃗ = 3A⃗ . Express your answer in terms of Ax and Ay separated by a comma.

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.