Full-fat milk is made up of fat-free milk mixed with fat. A volume of 1.000 x 10-?mof full-fat milk has a mass of 1.035 kg. It contains 4.00% fat by
volume.
The density of fat-free milk is 1.040 × 108kg m-?
What is the density of fat?
А
B
1.25 x 10²kgm
9.15 x 102kg m-
9.28 x 102kg m
1.16 x 10° kgm
san
с
D

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.

An insulated thermos contains 148 g of water at 72.7 ˚c. you put in a 11.7 g ice cube at 0.00 ˚c to form a system of ice + original water. the specific heat of liquid water is 4190 j/kg•k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?

According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?