A student wishes to determine the density of water. The student places a graduated cylinder on an electric balance, and zeros the balance. The student then adds different volumes of water to the cylinder and records the mass of each. Question: Should the density the student calculates depend on the volume of water in the graduated cylinder? Explain.

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

Which change to the system wood cause the freely-moving piston to lower?

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .