Three liquids are at temperatures of 6 ◦C, 20◦C, and 40◦C, respectively. Equal masses of the first two liquids are mixed, and the equilibrium temperature is 12◦C. Equal masses of the second and third are then mixed, and the equilibrium temperature is 34.5 ◦C. Find the equilibrium temperature when equal masses of the first and third are mixed. Answer in units of ◦C.

the answer would be   dignified - apex

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it

490 n

f=125n a=2.5m/s2