00:01
Solving problem 85 of chapter 2.
00:07
So the density of lead is density equal 11 .3 gram over ml.
00:20
And let's think about we have like a cube of this material.
00:25
Then we have a gradual cylinder with an initial volume that we can call v0 of 215m.
00:39
After we add this object to the water, the new volume that we can call b1, it rise to 285m.
00:53
So we want to calculate the mass, so was the mass of that object.
01:02
So in order to do that, first of all, i want to one, i want to one set and i'm trying to scroll down.
01:15
So first of all, i want to remind you that density equal mass over volume.
01:21
And so if we want to calculate the mass, it's going to be mass equal density time volume.
01:28
Ok...