The graph shows the heating curve of water.

at which point on the graph does water have a fixed volume that takes the shape of its container?
a. 1
b. 2
c. 3
d. 4

which characteristic best describes all liquids?
a. low viscosity
b. fixed volume
c. freezing point of 0°c
d. boiling point of 100°c

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

An object in mechanical equilibrium is an object

On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?